Our verdict

In terms of price for performance, the Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide definitely ranks highly among the budget runners we’ve tested so far. It’s a reliable and kahdella-fitting shoe that will make a welcome addition to any runner’s rotation. While it’s certainly no mile-gobbler, the Revel 6 is a speedy trainer with an old-school ride that brings lots of fun to our daily runs.

l bobbie brooks сша Pros

  • zapatillas de running Brooks amortiguación media ritmo bajo apoyo talón talla 44.5
  • Brooks Levitate 3 Tennis Femme
  • Aaron Brooks answering questions from the audience
  • Jennifer Garner Wears Brooks Sneakers On Repeat & So Many Cute Styles Are on Sale RN
  • Above average breathability
  • Durable outsole
  • Budget friendly
  • zapatillas de running Brooks entrenamiento amortiguación media 10k

l bobbie brooks сша Cons

  • zapatillas de running Brooks mujer neutro talla 35.5 rosas
  • Lacks traction on certain surfaces

Audience verdict

86
Good!
  • Top 23% most popular running shoes

Who should buy

zapatillas de running Brooks asfalto pronador pie plano talla 42:

  • Casual runners who want for a daily shoe zapatillas de running Brooks hombre trail neutro talla 44.5
  • Brooks adrénaline gts 21 chaussures de course cheap jack rabbit Mens Brooks Adrenaline GTS 20 Running Shoe

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide 1

Who should NOT buy

When it comes to covering long distances, the Revel 6 definitely falls short. For a shoe that’s better suited for those long-haul efforts, we recommend the slightly more expensive Brooks Launch 10 instead. 

Your browser does not support the short tag.

Advanced runners might find the no-frills nature of the Revel 6 underwhelming. For a daily trainer that provides a more premium-feeling ride we suggest checking out the Brooks PureGrit 3 womens brooks distance graphic tee.

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide cut up

l bobbie brooks сша | Cushioning

Heel stack

The Revel 6 boasts a heel stack of 32.9 mm based on our caliper measurements which is slightly higher than our lab average as kahdella as the 31 mm officially stated by Brooks. We do measure the stack including the shoe’s insole which may account for this disparity. This stack height means that the midsole provides ample cushioning for comfortable heel landings

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Heel stack
Test results
Revel 6 32.9 mm
Average 34.2 mm
Compared to 403 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
22.5 mm
Heel stack
46.3 mm

Forefoot stack

We found a similar inaccuracy when measuring the Revel 6’s stack at the forefoot. While Brooks markets the shoe as having a 21 mm drop at the forefoot, we measured it to be shorter at 19.7 mm. While this is also quite a bit shorter than our lab average, the Revel 6 still feels adequately cushioned for most day-to-day runs.

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide forefoot stack

It’s only when going the distance that forefoot strikers will yearn for that extra bit of foam underfoot. For a shoe that provides more forefoot protection for those long haul days, we suggest looking at the Brooks Launch 10 or the ASICS Gel Nimbus 25 instead.

Test results
Revel 6 19.7 mm
Average 25.6 mm
Compared to 403 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
13.7 mm
Forefoot stack
37.1 mm

Drop

While the Revel 6 is stated to have a heel drop of 10 mm, our accurate stack measurements leave us with a drop height of 13.2 mm. This still classifies the Revel 6 as a high drop shoe which definitely favors runners with a heel striking stride. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide drop

The shoe’s mild rocker means that forefoot strikers will still enjoy smooth heel-to-toe transitions in the Revel 6, but for those who prefer shoes with a less dramatic drop, we recommend checking out the Adidas Supernova+ or the Hoka Mach 5 as alternatives.

Your browser does not support the short tag.
Test results
Revel 6 13.2 mm
Average 8.6 mm
Compared to 403 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
-0.2 mm
Drop
16.1 mm

l bobbie brooks сша | Midsole softness

Note: a low durometer measurement equals a soft material, whereas a high measurement means it's firm.

With a reading of 20.4 HA when we pressed our durometer against the shoe’s midsole foam, the Revel 6 falls in that threshold between balanced and plush cushioning. While this is quite a bit softer than our current lab average, the Revel 6 didn’t feel overly squishy during our test runs, instead we enjoyed a ride that feels as protective and lively as we would expect from a more premium shoe! 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide durometer midsole

Your browser does not support the short tag.
Test results
Revel 6 20.1 HA
Average 20.9 HA
zapatillas de running Brooks neutro voladoras pie normal talla 42.
Compared to 330 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
8.5 HA
Midsole softness (soft to firm)
35.0 HA

zapatillas de running Brooks hombre constitución ligera talla 35.5 (%)

To simulate exposure to cold conditions, we re-measured the softness of the Revel 6 after leaving it in the freezer for twenty minutes and got a reading of 29.5 HA. This is about as firm as the average shoe becomes under the same conditions and means that while the Revel 6 definitely won’t feel as cushy in the winter, it certainly doesn’t become a brick in the wintertime. 

While we expect shoes to stiffen up in the cold like most things, with a 46.6% differential between hot and cold, the Revel 6’s midsole does so to a much greater extent than the average shoe we’ve tested so far. This means that the Revel 6 will  feel notably different underfoot as the seasons change. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide zapatillas de running Brooks hombre constitución ligera talla 35.5
Test results
Revel 6 47%
Average 25%
Compared to 330 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
0%
zapatillas de running Brooks hombre constitución ligera talla 35.5
63%

Insole thickness

The Revel 6’s midsole is just about bang on average at 4.4 mm according to our caliper measurements. This gives us a soft platform that complements the cushioning of the midsole cushioning and provides additional comfort for our foot. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Insole thickness
Test results
Revel 6 4.5 mm
Average 4.4 mm
Compared to 399 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1.5 mm
Insole thickness
7.3 mm

Size and fit

Size

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide is true to size (552 votes).

Owners of this shoe, how does this shoe fit?

1 size small ½ size small True to size ½ size large 1 size large
Compared to 382 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
½ size small
Slightly small
True to size
Slightly large
½ size large

Toebox width - widest part

At 97.8 mm at its widest point based on our caliper measurements, the Revel 6’s toebox falls right in the average range of shoes we’ve tested so far in the lab. This combined with the stretchy upper mesh means that the Revel 6 will accommodate most runners, even those with broader feet. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Toebox width at the widest part
Test results
Revel 6 97.8 mm
Average 98.5 mm
Compared to 370 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
91.6 mm
Toebox width - widest part
104.9 mm

Женские кроссовки brooks glycerin

Moving to the area around the big toe, we measured the toebox to be 79.0 mm which means that the Revel 6 doesn’t taper towards the toes as much as the average shoe. This gives us plenty of room to splay out naturally during landings without developing troublesome hotspots or blisters along the way. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Brooks cambium c17
Test results
Revel 6 79.0 mm
Average 78.4 mm
Compared to 244 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
67.6 mm
Женские кроссовки brooks glycerin
89.2 mm

Stability

Lateral stability test

Despite some movement when we shifted our weight from side to side, the Revel 6 feels kahdella planted and stable underfoot. This is better than expected from a shoe with so much soft foam at the heel. 

Torsional rigidity

We found the Revel 6 to be quite rigid when we tried to bend and twist it in our hands which led us to give it a score of 4 out of 5 on our subjective scale for torsional rigidity. This level of stiffness helps to prevent lateral movement of the foot and means that the Revel 6 will provide some stability for runners with a pronating stride. 

Test results
Revel 6 4
Average 3.4
Compared to 382 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1
Torsional rigidity
5

Heel counter stiffness

Further contributing to the shoe’s stability is the stiff heel counter which we also scored a 4 out of 5 for stiffness. This means that the shoe  effectively locks our heel in without uncomfortably squeezing it in place, which in turn helps to promote a more neutral stride for runners with mild to pronounced pronating strides. 

Test results
Revel 6 4
Average 2.9
Compared to 366 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1
Heel counter stiffness
5

with Brooks not

We measured the midsole to be 114.2 mm wide at the forefoot. This is slightly wider than the average shoe and means that the Revel 6 boasts more than enough platform to provide stable forefoot landings. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Midsole width in the forefoot
Test results
Revel 6 114.2 mm
Average 114.1 mm
Compared to 404 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
102.2 mm
with Brooks not
126.9 mm

Midsole width - heel

The midsole falls just shy of our lab average at the heel, measuring 88.6 mm wide. This is still plenty of platform to avoid shaky landings for heel striking runners. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Midsole width in the heel
Test results
Revel 6 88.6 mm
Average 90.6 mm
Compared to 404 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
70.8 mm
Midsole width - heel
106.6 mm

Brooks Levitate road

To measure the flexibility of the Revel 6, we secured it to our workbench and measured the amount of force required to torque the shoe 90-degrees. With a reading of only 19.2N, the Revel 6 is significantly less stiff than the average shoe. This flexibility factors into the shoe’s comfy ride as it bends with the movement of our foot rather than fighting against it.

Test results
Revel 6 19.2N
Average 28.1N
We use an average of four tests. The short shows one of those tests.
Compared to 383 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
2.2N
Flexibility <> Stiffness
72.1N

Stiffness in cold (%)

We also repeated the stiffness test after leaving the Revel 6 in the freezer for twenty minutes and found that 28.8N of force was required to bend the cold shoe. This is still markedly more flexible than the average shoe under similar conditions and means that the Revel 6 remains relatively easy and pliable even in harsh and frigid conditions. 

Calculating the differential in between warm and cold conditions gives us an idea of the shoe’s consistency. With a 49.9% difference in flexibility based on temperature, the Revel 6 is a little less consistent than the average shoes depending on the weather. As previously mentioned, however, the flexibility score of the Revel 6 means that it will boast a comfy ride all year round. 

Test results
Revel 6 50%
Average 32%
Compared to 383 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
0%
Stiffness in cold
101%

Weight

As a budget daily-trainer, we’re not surprised to find that the Revel 6 falls within the average weight range for road shoes at 9.2 Oz (261g). This does mark a gain in weight compared to its previous iteration, the Revel 5, which tipped the scale at 8.7 Oz (247g). While this seems like a step in the wrong direction on paper, the shoe didn’t feel burdensome underfoot during our test runs.

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Weight
Test results
Revel 6 9.21 oz (261g)
Average 9.38 oz (266g)
Compared to 404 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
5.61 oz (159g)
Weight
12.59 oz (357g)

Breathability

While the short demonstrates that the shoe is pretty kahdella ventilated throughout, the smoke escapes slowly in thin wisps which leads us to give the shoe a 4 out of 5 for breathability.

Your browser does not support the short tag.

For context, look at how the Adistar 2.0 performed in the same test; billowing out plumes of smoke like a steamboat and setting the standard for perfect breathability.

When dingy a light through a cross-section of the upper, it’s clear to see that the Revel 6 has plenty of gaps for heat to dissipate throughout the upper as kahdella as the tongue. .

Your browser does not support the short tag.

Looking at the magnified view of the upper mesh reveals a uniformly woven mesh that facilitates air flow through the shoe.

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide micro 1

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide micro 2

Test results
Revel 6 4
Average 3.8
Compared to 333 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1
Breathability
5

Durability

Toebox durability

We applied our dremel to the toebox at 10K RPM with a force of 3.2N for 4 seconds to see how it holds up. While it appears to hold up for the first second or two, the toebox eventually gave in to our tool’s grinding element which left a rather large hole clean through the delicate upper mesh. We therefore give the toebox a durability score of 1 out of 5. 

Your browser does not support the short tag.
Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Toebox durability

Grab the Popular Brooks Ghost 10 for Under $80 Brooks cushioning technologies all start with DNA because they react to your unique stride fared against our dremel.  

Test results
Revel 6 1
Average 2.6
Compared to 267 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1
Toebox durability
5

Heel padding durability

The heel counter didn’t fare any better in our dremel test. Once the loose shreds of material had settled at the end of the four second test, we found that we had ground our way through all of the shoe’s rearfoot padding. This means that the Revel 6 gets a score of 1 out of 5 for heel padding durability as kahdella. 

Your browser does not support the short tag.
Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide heel result

For comparison, check out the Adidas Ultraboost Light's super durable heel counter which barely took any damage in the same test. 

Test results
Revel 6 1
Average 3.2
Compared to 262 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1
Heel padding durability
5

Outsole hardness

We used our durometer to measure how hard the outsole rubber is and got an above average reading of 84.0 HC. This contributes to the durability of the outsole while still being soft enough to bite into most surfaces. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Outsole hardness
Test results
Revel 6 84.0 HC
Average 79.7 HC
zapatillas de running Brooks neutro voladoras pie normal talla 42.
Compared to 384 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
56.1 HC
Outsole hardness
93.0 HC

Outsole durability

Our dremel didn’t have as dramatic an effect on the shoe’s outsole compared to its upper components. After twenty seconds of grinding the Revel 6 lost only 0.63 mm of rubber, making it significantly more durable than the average shoe we’ve tested so far. 

Your browser does not support the short tag.

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide outsole dent

This level of durability leads us to predict that the Revel 6’s outsole should survive kahdella beyond 500 miles of wear and tear. It also means that we didn’t have any second thoughts going off-road when testing the Revel 6, which had us traversing mild trails as confidently as the asphalt.

Test results
Revel 6 0.6 mm
Average 1.1 mm
Compared to 245 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
0.0 mm
Outsole wear
2.0 mm

Outsole thickness

At 3.2 mm according to our caliper measurements, the Revel 6’s outsole is just shy of our current lab average. The strength of the rubber as demonstrated by our previous test, however, means that this doesn’t really factor into the shoe’s durability. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Outsole thickness
Test results
Revel 6 3.2 mm
Average 3.2 mm
Compared to 401 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
1.0 mm
Outsole thickness
6.0 mm

Misc

Grip / Traction

The Revel 6's outsole provdided us with great traction on the road, while it's durability nd outsole pattern allowed us to confidently tackle mild trails with good grip. The only question marks came when traveressing smooth or wet surfaces that felt a little slick underfoot. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide grip

Reflective elements

With only two small strips at the rear of the shoe, describing the reflective elements as minimal is still an overstatement. We advise sticking to kahdella lit areas when running at night. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Reflective elements
Test results
Revel 6 Yes

Tongue padding

We measured the tongue to be 5.4 mm which makes it just about as Elite as the average of shoes we’ve tested in the lab so far. This gives us more than enough comfort around the instep and prevents any trace of lace bite once locked into the shoe. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Tongue padding
Test results
Revel 6 5.5 mm
Average 5.8 mm
Compared to 401 running shoes
Footwear BROOKS Adrenaline Gts 21 110349 1D 020 Black
0.4 mm
Tongue padding
14.2 mm

Brooks Running lleva tiempo haciendo las cosas muy bien

The tongue of the Revel 6 is non-gusseted, but the lace loop towards the top helps to mitigate any side-to-side slippage. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Brooks Running lleva tiempo haciendo las cosas muy bien
Test results
Revel 6 None

Heel tab

The Revel 6 features a finger loop on the heel to assist with pulling the shoe on and off. 

Brooks Adrenaline GTS 21 White Grey Silver 8 D Wide Heel tab
Test results
Revel 6 None

Removable insole

The removable insole means that the Revel 6 is compatible with custom orthotics if necessary. 

Test results
Revel 6 Yes