Luxurious, cloud-like cushion with 200-needle construction; Durable reinforced heel and toe; Keeps feet dry with OS1st's Dry1st technology; Light arch compression to prevent rubbing and blisters; Anatomically Correct for a custom-like feel; Wide toe box for natural toe splay; Breathable yarns keeps feet cool; Seamless designs - no pinching or irritation; Silver Ion Technology - anti stink and anti-microbial; 360 Blister Protection