Grey Brooks Glycerin GTS 23 – Men&
A pair of gray Brooks Glycerin GTS 23 – Men&
Gray Brooks Glycerin GTS 23 – Men&
The outsole of a dark gray Brooks Glycerin GTS 23 – Men&
A dark gray Brooks Glycerin GTS 23 – Men&
Gray Brooks Glycerin GTS 23 – Men&
Gray Brooks Glycerin GTS 23 – Men&
Grey Brooks Glycerin GTS 23 – Men&
A pair of gray Brooks Glycerin GTS 23 – Men&
Gray Brooks Glycerin GTS 23 – Men&
The outsole of a dark gray Brooks Glycerin GTS 23 – Men&
A dark gray Brooks Glycerin GTS 23 – Men&
Gray Brooks Glycerin GTS 23 – Men&
Gray Brooks Glycerin GTS 23 – Men&
Brooks

Brooks Glycerin GTS 23 – Men's – Grey/Blackened Pearl/Black

$180.00
/
Size
Width
  • Low stock - 1 item left
  • Backordered, shipping soon
How It Should Fit

The Glycerin GTS 23 has an accommodating knit upper and comes in multiple widths, so it fits a broad range of feet. One honest note: it runs a touch short for some, so if you're between sizes or at the top of your usual size, try a half-size up. Fit the foot, not a brand rule — go by what your foot tells you.

Thumb's widthLeave about a thumbnail's width between your longest toe and the end of the shoe. If your longest toe touches the end, go up a half to full size to start.
Play the pianoYour toes should wiggle and splay freely. Cramped toes mean size up; a sloppy forefoot means size down.
Midfoot hugThe midfoot should feel held, not pinched. The knit upper wraps securely and the GuideRails sit alongside the foot without crowding it.
A little heel slip is fineSome heel movement on early steps is normal and not a reason to size down — it usually settles as the shoe breaks in.

Width: available in Medium (D), Wide (2E), and Extra-Wide (4E). Your foot should sit on the platform, not spill over the sides. If it spills over, go wider — not longer. The accommodating fit also leaves room for an orthotic.

Sock tip: a medium-thickness running sock (like Balega Hidden Comfort) pairs best.

Not sure on size or width? Come get a free fit session at our Glendale shop — we'll measure both feet, watch you move, and dial it in before you commit (especially handy since this one runs slightly short).

Technical Specifications
Here's exactly what you're standing on — and what each number means for your run or your workday.
Heel Stack Height
38 mmA high, cushioned stack — plenty of foam under the heel to soften landings.
Forefoot Stack Height
30 mmUp 2 mm this year for a softer, plusher toe-off.
Heel-to-Toe Drop
8 mmLowered from 10 mm in this version for a more balanced, even-feeling ride.
Weight
10.8 oz (men's, size 9)A substantial, cushioned trainer — comfort over speed. Source: Brooks / Doctors of Running.
Midsole Technology
DNA TunedNitrogen-infused, dual-density foam: softer cells in the heel for plush landings, firmer, springier cells up front for a responsive toe-off.
Support System
GuideRailsGuidance-based support that sits along the midsole and gently keeps excess movement in check — no traditional medial post, no corrective feel. Light enough that a wide range of runners enjoy it.
Outsole Material
Durable rubberReliable road traction and long-lasting wear.
Upper Material
Engineered triple-jacquard knitA plush, breathable knit that welcomes different foot shapes without pressure points.
Fit Type
Accommodating; runs slightly shortRoomy through the upper. Some find it fits a touch short — consider a half-size up if you're between sizes.
Who It Suits
A soft ride with gentle guidanceGreat for mild overpronation, arch or knee comfort, and anyone who wants light guidance — but easy enough that a wide range of runners enjoy it. How much support you need comes down to the whole foot and how it loads, not a category label — best sorted in a fit session.
Primary Use Case
Supported daily trainingSoft, easy and long road miles at comfortable paces.
Secondary Use Cases
Walking · long runs · all-day wear · recoveryA go-to for long shifts on hard floors, easy days, and travel.
Available Widths
Medium (D) · Wide (2E) · X-Wide (4E)Multiple widths so most foot shapes can sit on the platform without spilling over.
Rocker
Early rocker + toe springHelps roll you smoothly from landing to toe-off.
Price
$180MSRP.
Extras
APMA Seal of AcceptanceCarries the American Podiatric Medical Association Seal — a plus for foot-health-minded buyers and all-day wear.
Warranty / Returns
60-day "You = Happy"Not carbon-plated, so it's returnable under our 60-day policy for refund, exchange, or store credit.
Best Use Cases
What it's made for
✓
Soft daily training — plush, comfortable everyday miles. This is its home.
✓
Long runs at easy paces — the cushion stays comfortable past mile 10.
✓
Walking & standing all day — plush, gently supportive, and APMA-accepted for long shifts.
✓
Mild overpronation or stride drift — GuideRails keep things tracking straight.
✓
Wide & high-volume feet — accommodating knit and multiple widths.
Not the right tool for
×
Speed workouts & racing — at 10.8 oz it's cushioned, not fast.
×
Anyone wanting zero guidance — the GuideRails are gentle, but they're there.
×
Trail — the road outsole isn't built for dirt and rock.
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Why this Shoe Works

Close-up of a Brooks Glycerin GTS 23 running shoe with a white and green sole on a light gray background

Plush underfoot, mile after mile

Step in and the Glycerin GTS 23's DNA Tuned midsole does the talking — a nitrogen-infused foam with softer cells in the heel for cushioned landings and firmer, springier cells up front for an easy toe-off. It's that premium, sink-in-but-not-mushy feel Glycerin fans keep coming back for. Soft where you land, lively where you leave.

Light green and white Brooks Glycerin GTS 23 Running Shoe

An upper that makes room for your foot

The Glycerin GTS 23's engineered triple-jacquard knit is soft, breathable, and accommodating — it gives wider and higher-volume feet room to settle without pinching or hot spots, while still holding your midfoot securely so your foot doesn't slide around. Your toes stay free to splay, the knit moves with you, and it comes in multiple widths so you can match the shoe to your actual foot shape instead of forcing your foot into the shoe. Roomy where you need it, secure where it counts.

Light green Brooks Glycerin GTS 23 running shoe with black and white accents on a light gray background

Support that works quietly in the background

Brooks GuideRails sit along the midsole and only kick in when your stride drifts, gently keeping excess movement in check — no hard medial post, no corrective feel. The guidance is light enough that it never fights you; it just keeps things tracking straight when your form starts to loosen. Help you feel only when you need it.

Built For How You Move

Person running on a desert path with cacti and mountains in the background wearing a Brooks Glycerin gts 23 running shoe

Your plush daily trainer

Easy miles are where the Glycerin GTS 23 lives. The soft DNA Tuned foam takes the edge off Phoenix pavement while the GuideRails keep you tracking straight when your form starts to loosen, so daily training feels comfortable and repeatable. Not a fast shoe — a feel-good one. The pair you reach for on autopilot.

Person wearing white and green Brooks Glycerin GTS 23 athletic shoes in a warehouse setting

Built for long days on hard floors

Twelve-hour shifts and concrete are brutal on feet, and the Glycerin GTS 23 is one of our go-tos for them — plush, cushioned, and gently supportive from the first hour to the last. Nurses, teachers, and folks working retail and service across the West Valley lean on it. Comfort that outlasts the shift.

Man walking in Brooks Glycerin GTS 23 on sidewalk in Glendale, AZ.

Easy walking and recovery

On a recovery day or a long walk, the soft landings and smooth roll let your legs settle while the GuideRails keep everything aligned. Neighborhood loops, travel days, errands around Glendale — it stays comfortable from the first block to the last. Easy on the legs.

Who Is the Brooks Glycerin GTS 23 For?

The Brooks (men's) Glycerin GTS 23 is for the runner or walker who wants a soft, premium ride with a little guidance built in.

The GuideRails are gentle enough that a wide range of runners enjoy them — whether you've felt your stride wander late in a run, deal with mild arch or knee discomfort, or just like the reassurance of a shoe that keeps things tracking straight.

The plush DNA Tuned cushioning and accommodating knit upper make it a favorite for easy daily miles, long runs at relaxed paces, and long days on hard floors — and with multiple widths, it fits broad and high-volume feet well.

It's a cushioned trainer first and a support shoe second, so it suits guys who want comfort that doesn't wobble rather than a firm, corrective feel.

Person wearing green and black Brooks Glycerin GTS 23 sneakers stepping onto a wooden deck.
Man sitting on a bench tying his Brooks Glycering GTS 23 running shoes in a park.
Who Should Skip It

We'd rather point you to the right shoe than sell you the wrong one. Skip the Glycerin GTS 23 if…

You want less guidance underfoot

If you'd rather a shoe without the GuideRails, look at the Brooks Ghost Max 3 or the Diadora Vigore V.

You want even more structure

For a heavier runner or a stride that needs more than gentle guidance, the Brooks Beast GTS 24 offers a higher-drop, heavier-duty, more structured ride.

You want speed or a lighter shoe

At 10.8 oz it's a cushioned trainer, not a fast shoe. For tempo and race days, look at a lighter trainer like the Saucony Endorphin Speed 5.

How it Compares

White grey Asics Kayano 33 running shoe with blue sole on a white background

Brooks Glycerin GTS 23 vs. ASICS Gel-Kayano 32

These two land in nearly the same place: premium, cushioned daily trainers with guidance-based support and no traditional medial post, both around an 8 mm drop and similar weight (10.8 vs ~10.5 oz), both carrying the APMA Seal. The difference is feel. The Glycerin GTS 23's DNA Tuned foam is plush and a touch lively, with a roomy, accommodating knit; the Kayano 32 pairs FF Blast+ foam with a PureGEL heel and ASICS's 4D Guidance for a slightly more structured, more locked-in ride.
Choose the Glycerin GTS 23 for the plush DNA Tuned ride and a roomier fit. Choose the Kayano 32 for ASICS's guidance system and a snugger, more secure hold. We carry both.

Blue Hoka Gaviota 6 running shoe with orange on a white background

Brooks Glycerin GTS 23 vs. HOKA Gaviota 6

Both are max-cushion shoes with built-in support, but they feel different underfoot. The Glycerin GTS 23 is softer and plusher (DNA Tuned) with a higher 8 mm drop and gentle GuideRails guidance. The Gaviota 6 is firmer and more planted — denser CMEVA foam, a lower 6 mm drop, and an H-Frame plus a wide base for a more structured, steady feel, in a roomier high-volume fit, and it's a touch lighter (≈10.0 vs 10.8 oz).
Choose the Glycerin GTS 23 for a softer, plusher ride with light guidance. Choose the Gaviota 6 for a firmer, more planted, more structured feel and a roomier high-volume fit. We carry both.

Man running on a treadmill in a home setting wearing Brooks Glycerin GTS 23
Frequently Asked Questions
What's the difference between the Glycerin GTS 23 and the regular Glycerin 23?
Same shoe, one difference: the GTS adds Brooks's GuideRails. They share the same plush DNA Tuned midsole, stack, and drop, but the GTS has guidance built along the midsole that gently keeps excess movement in check. If you want a little reassurance or your stride tends to drift, go GTS; if you want the same cushion with nothing guiding it, the standard Glycerin 23 is the one.
Does the Glycerin GTS 23 have a medial post?
No. Instead of a traditional hard medial post, it uses GuideRails — guidance that sits along the sides of the midsole and only engages when your stride drifts, so it guides rather than corrects. How much support any runner needs comes down to the whole foot and how it loads, not a label — the surest way to know is a quick fit session in Glendale.
Is the Glycerin GTS 23 good for walking and standing all day?
Yes — it's one of our top picks for it. The plush DNA Tuned cushioning takes pressure off your feet, the GuideRails add gentle support for long hours, and it carries the APMA Seal of Acceptance. Nurses, teachers, and anyone on hard floors all day do well in it.
Is the Glycerin GTS 23 good for wide or high-volume feet?
Often, yes — the knit upper is accommodating and it comes in Medium (D), Wide (2E), and Extra-Wide (4E). Keep in mind "wide" is a blanket term, though: the foot is three-dimensional, with instep height, girth, and arch length all in play alongside width. Your foot should sit on the platform without spilling over; if it does, go wider, not longer. Best to have both feet measured in person.
Is the Glycerin GTS 23 true to size?
Close, but it runs a touch short for some runners. Order your normal size and leave about a thumbnail's width past your longest toe — and if you're between sizes or right at the top of your size, try a half-size up. The roomy upper handles a thicker sock or an orthotic well, and a little heel slip on the first few steps is normal.
Is the Glycerin GTS 23 breathable enough for Phoenix?
Its engineered knit upper breathes well and stays comfortable on warm Phoenix mornings, on the treadmill, and through all-day wear. It's a substantial, cushioned shoe rather than a thin summer racer, so for peak-summer speed work a lighter mesh will feel airier — but for everyday miles and long days on your feet, it's a comfortable warm-weather pick.
What changed from the Glycerin GTS 22 to the 23?
Brooks added 2 mm more DNA Tuned foam in the forefoot and lowered the drop from 10 mm to 8 mm, so the ride feels softer up front and more balanced overall. There's also a new engineered triple-jacquard knit upper for a plusher, more breathable fit, and the GuideRails feel a little less intrusive than before.
How does the Glycerin GTS 23 compare to the HOKA Gaviota 6?
Both are max-cushion shoes with built-in support, but they feel different. The Glycerin GTS 23 is softer and plusher (DNA Tuned) with a higher 8 mm drop and gentle GuideRails guidance. The Gaviota 6 is firmer and more planted — denser foam, a lower 6 mm drop, and an H-Frame plus a wide base for a more structured feel, in a roomier high-volume fit. Pick the Glycerin for a softer ride with light guidance; pick the Gaviota for a firmer, more planted feel. We carry both and can compare them on your feet.
How durable is the Glycerin GTS 23 — how many miles?
Plan on roughly 300–500 miles of running, typical for a cushioned daily trainer, and the durable rubber outsole holds up well. Walkers and all-day wearers usually get many months out of a pair. When the cushion goes flat or the support feels less steady, it's time for a new pair.
What's your return policy?
Our "You = Happy" policy gives you 60 days from purchase for a refund, exchange, or store credit. Refunds need the shoes in like-new condition; worn-but-not-worn-out pairs can still earn an exchange or store credit. Receipt or purchase-history lookup required. The Glycerin GTS 23 isn't carbon-plated, so it's fully returnable (clearance and plated shoes are final sale). Online orders can be mailed back or returned in person in Glendale to skip shipping. Read the full policy →

Why Our Team Recommends the Brooks Glycerin GTS 23

The Glycerin GTS 23 is one of our easiest recommendations for the runner who loves a soft, cushioned shoe but finds their legs get tired or their stride starts to wander late in a run.

We like that the GuideRails guide rather than correct — they're gentle enough that they don't fight a smooth stride, but they're there when fatigue sets in — and that the DNA Tuned foam delivers that plush, premium feel without turning unstable.

It's a favorite for all-day-on-their-feet workers across the West Valley and for guys who want max cushion with a little reassurance. It's not light and it's not fast, and we'll tell you so — but for soft, supported comfort, it's hard to beat.

Why Buy from Tortoise and Hare Sports 

We're a locally owned specialty running store in Glendale, Arizona — not a warehouse. When you buy from us, you get the experience of a team that has fit thousands of runners and walkers across Phoenix metro and actually knows these shoes.

Expert, in-person fit help — we watch how you move and match you to the right shoe, size, and width on the actual pair, not a guess.

Our "You = Happy" Return Policy — 60 days. If your shoes aren't right, you have 60 days to return them for a refund, exchange, or store credit — and yes, you can run in them first.

We carry the alternatives — if a shoe isn't right for you, we'll tell you and put you in one that is. The goal is the right fit, not just a sale.

Real local knowledge — we run and walk in the same Arizona heat and on the same routes you do, so our advice fits your world.

Whether you shop online or stop by the store, you're backed by people who care that you get it right. Come see us in Glendale — we'd love to help you find your next pair.