Arch Stability™ Experience the ultimate in easy-wearing support wearing Skechers Hands Free Slip-ins®: GO WALK® Arch Fit® 2.0 - Valencia. This slip-on walking design has been granted the APMA Seal of Acceptance and features our exclusive Heel Pillow™, lightweight ULTRA GO® cushioning, and an athletic engineered knit upper with a removable Arch Fit® insole. The upper is made of 72.53% Textile (67.66% Polyester, 2.81% Elastane, 2.06% Nylon) and 27.47% Synthetic (26.28% TPU, 1.19% PU). The lining is 100% Textile (92.88% Polyester, 5.45% Elastane, 1.67% Nylon) and the sock bed is 100% Textile (Polyester). The outsole is 100% EVA.