It's no surprise the response has been so great to this well-balanced workhorse. The 361-SENSATION 2's sole unit utilizes a full-length QU!KFOAM(TM) top layer to cushion each foot strike. Looking for more stability? - No problem. The 361-SENSATION 2 adds a degree of stability to the arch to help manage less-than-perfect biomechanics. The ideal ride for any run. Features: - Upper - Breathable air mesh with direct attached overlays and internal BIO-NET webbing provide a snug and secure fit - Insole - Molded blend of QU!KFOAM for additional comfort and support - Midsole - QU!KFOAM maximizes and maintains responsive flexible cushioning while a medial post and TPU Arch Bridge provide unobstructed support - Outsole - Lightweight blown rubber forefoot with a durable high abrasive resistant crash pad patterned to provide the best traction and shock dispersion - Weight - 9.9 oz. each - Drop - 8mm