Asics Gel Challenger 8 Mens Tennis Shoes feature a synthetic leather upper, an anti-gravel tongue and a DuoTruss system to support the foot.

SoLyte Midsole Material - Spongy layer between the sole and upper designed to absorb shock and cushion the foot.
Solyte is a lighter material than SpEVA and EVA and features enhanced durability.

Rearfoot and Forefoot Cushioning Systems - Silicone-based material placed in critical areas of the sole which dampens shock when the foot hits the ground allowing for a smooth movement through the step and reducing the risk of injury.

Trusstic System - Plastic bridge under the arch which gives the shoe strength and stability without loss of flexibility.