Contents
ASICS Gel-Kayano 33 vs Brooks Glycerin GTS 23
Compare two premium stability trainers: ASICS Gel-Kayano 33 and Brooks Glycerin GTS 23, including support, cushioning, fit, weight, and best uses.
Quick Hits
- •Both are 8mm stability trainers, but the Kayano has a maximum cushion rating while the Glycerin GTS is rated high.
- •The Kayano is taller and slightly lighter; the Glycerin GTS offers four cataloged widths.
- •Early Kayano guidance comes primarily from ASICS, so its ride conclusions remain provisional until independent reviews mature.
Head-to-head breakdown using our audited shoe database.
The ASICS Gel-Kayano and Brooks Glycerin GTS sit near the premium end of cushioned stability training. The Gel-Kayano 33 introduces a new adaptive support system, while the Glycerin GTS 23 applies familiar GuideRails to Brooks' DNA Tuned platform.
This article remains a draft until both component reviews are public. Kayano 33 ride evidence is also still manufacturer-led, so conclusions about its on-foot behavior are intentionally cautious.
Quick Verdict
Choose the ASICS Gel-Kayano 33 if you want the taller and slightly lighter shoe, and ASICS' FLUIDSUPPORT concept appeals to you. The brand says the system adapts its guidance through the gait, but independent review evidence is not yet mature enough to declare how subtle or controlling it feels.
Choose the Brooks Glycerin GTS 23 if you want an established GuideRails design, broad width access, and independent evidence describing a dense, cushioned, noticeably structured ride for easy and long use.
Current Comparison Table
| Specification | ASICS Gel-Kayano 33 | Brooks Glycerin GTS 23 |
|---|---|---|
| Primary use | Daily / long / recovery | Daily / long / recovery |
| Support | Stability | Stability |
| Cushion level | Maximum | High |
| Support system | FLUIDSUPPORT | GuideRails |
| Heel-to-toe drop | 8mm | 8mm |
| Stack height | 43mm heel / 35mm forefoot | 39mm heel / 31mm forefoot |
| Weight (men/women) | 10.5oz / 9.1oz | 10.8oz / 9.6oz |
| Widths | Standard, wide | Narrow, standard, wide, extra-wide |
| Catalog MSRP | MSRP: $170 | MSRP: $180 |
| Surface | Road | Road |
Key Differences
ASICS builds the Kayano around dual FF BLAST PLUS and FF BLAST MAX foams plus FLUIDSUPPORT. The manufacturer describes the guidance as adaptive rather than a fixed post. The 43/35mm catalog stack is 4mm taller than the Brooks at both heel and forefoot, while maintaining the same 8mm drop.
Brooks surrounds its platform with GuideRails and uses DNA Tuned foam. Independent Doctors of Running coverage found the GTS version denser and more controlling than the neutral Glycerin 23. It is slightly heavier and costs MSRP: $10 more, but its ride evidence and width selection are better established.
Fit and Sizing
The Kayano comes in standard and wide. Until broader independent fit data is available, ASICS' sizing information should be treated as a starting point, not a universal fit guarantee.
The Glycerin GTS comes in narrow, standard, wide, and extra-wide. Doctors of Running found a secure, generally true-to-size engineered-knit upper. The four-width menu gives Brooks the paper advantage, but each runner still needs adequate toe clearance and a secure heel.
Ride and Intended Use
Both are designed for easy, long, and recovery-paced road running. ASICS positions the Kayano's dual foam and guidance system as responsive to changing support needs. That is a manufacturer claim, not yet an independently settled ride verdict.
The Brooks has clearer third-party context: cushioned but dense, structured, and better suited to relaxed mileage than quick sessions. Neither is a speed shoe. Compare their category peers in our best stability running shoes and best cushioned running shoes.
Who Should Choose the Gel-Kayano 33
- Runners who want the taller 43/35mm platform.
- Shoppers who prefer the slightly lower weight and MSRP: $10 lower MSRP.
- Existing Kayano users interested in ASICS' new FLUIDSUPPORT direction.
- People comfortable adopting a new model before independent evidence matures.
Who Should Choose the Glycerin GTS 23
- Runners who want a clearly noticeable GuideRails structure.
- Shoppers needing narrow or extra-wide options.
- Those who prefer a model with detailed independent ride and fit reporting.
- Easy and long-run users comparing the neutral Glycerin 23.
Tradeoffs
The Kayano looks stronger on stack, weight, and catalog price, but its new support system has less independent evidence. The Brooks has a firmer, more-established identity and more widths, yet its noticeable guidance and 10.8oz men's weight may be excessive for runners who want unobtrusive support.
Related Comparisons
For two neutral Brooks models, see Brooks Ghost vs Brooks Glycerin. For daily trainers with different structural approaches, read Mizuno Wave Rider vs Brooks Ghost. Long-distance shoppers can also browse our best long-run shoes.
Final Takeaway
On specifications, the Kayano 33 is taller, lighter, and less expensive. On fit access and current independent evidence, the Glycerin GTS 23 is stronger. The final choice comes down to adaptive versus more noticeable guidance—and whether you prefer to wait for more Kayano ride evidence.
Key Takeaway
The Kayano 33 is the taller, slightly lighter adaptive-guidance option; the Glycerin GTS 23 is the more established, structured choice with four widths.
Frequently Asked Questions
What is the main difference between the Kayano 33 and Glycerin GTS 23?
Which shoe is lighter?
Which is better for wide feet?
References
- https://www.asics.com/us/en-us/gel-kayano-33/p/ANA_1011C167-250.html
- https://www.solereview.com/release-date-calendar-for-running-shoes/
- https://www.brooksrunning.com/en_us/mens/shoes/road-running-shoes/glycerin-gts-23/110503.html?dwvar_110503_color=090
- https://www.doctorsofrunning.com/2026/01/brooks-glycerin-gts-23-review-2026.html