Designed for footwear with a removable insole and for those seeking maximum support and shock absorption. Features: Top covers are treated with Agion; a natural, silver-based antimicrobial built right into products for long-lasting protection against bacteria Foundation XLPE technology uses an ultra-light, closed-cell foam that resists moisture and helps reduce shock Ideal 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 absorption Sold as a Pair Fits US Men's 5.5 - 7 and Women's 6.5 - 8 Specs: InsulatedNo SupportHigh