AIRfeet Classic BLACK, Active Arch Support Orthotic Insoles, Size 1S, 3.5 to 4.5 Male, 5 to 6.5 Female, Pair.Designed for all-day relief, AIRfeet CLASSIC BLACK insoles support natural foot and arch function while delivering enhanced Active Motion Arch Support and superior comfortall in an ultra-thin design that fits almost any shoe.Key Features: Soothing Comfort & Pain Relief Ideal for neuropathy, plantar fasciitis, and foot fatigue Active Arch Motion Technology Massaging action stimulates foot muscles Moisture-Wicking Fabric Soft, durable material keeps feet dry and comfortable Life Enhancing Results Great for standing, walking, work, and leisure activities Universal & Unisex Fit Suitable for business, casual, dress, and fashion footwear Reversible & Interchangeable Design Rotate for extended wear life Ultra-Thin 2mm Profile Fits effortlessly into any shoe without adding bulk Customizable Fit Snip & Tear-Off perforated trimming system for a precise fit Enhances Orthotics Works with or without existing orthotics for added comfort Washable & Durable Easy to cleanmachine or hand washable, air dry only 12-Month Unconditional Warranty Backed by AIRfeets quality commitment