Designed for footwear with a removable insole and for those seeking maximum support and shock absorption.Top covers are treated with Agion; a natural, silver-based antimicrobial built right into products for long-lasting protection against bacteriaFoundation XLPE technology uses an ultra-light, closed-cell foam that resists moisture and helps reduce shockIdeal for feet with medium to high arches.Encapsulating Stabilizer System (ESS) features a unique stabilizer cap for optimal underfoot support and a deep heel cup to improved natural shock absorptionSold as a PairFits US Men’s 9.5 – 11 and Women’s 10.5 – 12