Swiftwick'S Aspire One Running And Cycling Socks Are Breathable And, Fit. Product Features Mesh Machine Wash MAXIMUM SWEAT MANAGEMENT: Our signature Olefin fiber is a light-weight, high-performance fiber that wicks moisture and dries quickly, so your feet stay dry and blister-free wherever your adventures take you. THIN, BREATHABLE DESIGN: Upper channels and a mesh footbed are thinly knitted for ultimate breathability and ventilation to prevent hotspots and keep your feet cool. FIRM SUPPORT: Our highest compression sock with arch band support that hugs your feet firmly to support your muscles and reduce fatigue so you can perform better, longer. Y-SHAPED HEEL: Heel is stitched using a Y shape for a snug fit that moves with your foot without any bunching or slipping. MADE IN THE USA: Swiftwick Socks are designed and crafted in the USA Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!