With even more nitro-infused foam than before, the Brooks Glycerin 21 GTS returns as the most cushioned running shoe in its lineup. Designed to deliver the an ultra-comfortable and smooth ride for any distance, the Glycerin 21 GTS has never been better. The Glycerin 21 GTS adds 2mm more plush and responsive DNA Loft v3 cushioning in the midsole that offers a little extra softness to a shoe that's already plenty soft. For runners in need of additional support, Brooks' trusted GuideRails support system rounds out the midsole to keep your transitions smooth and balanced. As a cherry on top, the additional cushioning does not come at the expense of extra weight.

Bringing long-lasting traction to the party is the new RoadTack rubber that is strategically placed in the outsole to deliver the grip needed to rack up the miles. Rounding out this shoe is the new engineered warp knit upper that checks the boxes of being accommodating, secure, and breathable, which only adds to the supreme comfort the Glycerin brings to the table. Running farther has been made easier than ever thanks to the Brooks Glycerin 21 GTS––all you have to do is enjoy the ride. 

What You’ll Love 

• Nitrogen-infused DNA Loft v3 is soft yet bouncy 
• New engineered warp knit upper is secure and breathable 
• GuideRails only assist when needed