Featuring nitrogen-infused DNA Loft V3 cushioning, the Brooks® Adrenaline GTS 24 shoes are smooth and supportive for every step. The GuideRails® technology of these shoes offers enhanced comfort and performance. These running shoes are made of a rubber upper with a lace-up closure. The EVA insole and nylon lining ensure a comfortable walking experience. Round toe silhouette. Road Tack rubber outsole. Excellent condition, barely worn