Men's Glycerin 23

Category: Neutral daily trainer (GTS version available for stability with GuideRails)

Weight: 10.7 oz / 303g (Men's US 9); 9.5 oz / 269g (Women's US 8)

Midsole Drop: 8mm (decreased from previous 10mm versions by adding 2mm of foam to the forefoot)

Stack Height: 38mm (heel) / 30mm (forefoot)

Midsole Foam: Nitrogen-infused DNA Tuned foam with dual-cell sizing for softer impact absorption in the heel and a more responsive toe-off

Upper Material: Triple jacquard warp-knit engineered mesh for a snug, plush step-in fit

Outsole: Redesigned rubber coverage with horizontal and longitudinal flex grooves for traction and smooth heel-to-toe transitions

Best Use: Everyday training, recovery runs, long-distance road running, and walking

Length and Sizing

• True to size: Fits standard US sizing for length.
• Slightly short feel: Some runners note a slightly snug or short sensation due to the plush internal padding, making a half-size up worth considering if you prefer extra toe room for long runs.

Width and Volume

• Midfoot lockdown: Features a close, snug wrap around the midfoot for secure footing.
• Tapered toe box: Narrows slightly at the front. Wide-footed runners should opt for the Wide (2E/D) or Extra Wide (4E/2E) variants.

Upper and Comfort

• Step-in plushness: High amounts of collar and heel counter padding create a soft, comfortable wrap.
• Triple jacquard knit: Conforms closely to the foot, though the thick padding can run warm in hot weather.

Best Uses

• Easy and Daily Runs: Excellent for relaxed, everyday road miles where soft comfort matters more than fast pacing.
• Long-Distance Runs: Provides high impact protection and durable padding that prevents foot fatigue over high mileage.
• Recovery Days: Acts as a gentle, plush cushion for tired legs after hard workout days.
• All-Day Standing & Walking: Works great for active walking on pavement or long shifts on your feet due to the supportive, wide platform.

Who It Suits Best

• Neutral Runners: Ideal for runners without severe overpronation who want a balanced, stable ride.
• Heel Strikers: Features a rear-heavy, supportive design that cushions heavy heel landings smoothly.
• Higher-Weight Runners: Durable nitrogen-infused foam supports heavy impact without bottoming out.