OS1st TA4 Thin Air No Show Sock (Unisex) - Steel Blue Size:Medium (M) this sandal is designed to

this sandal is designed to relieve tension and stress from your feet

Made with waterproof materials

making it a must-have in any closet

A contoured footbed grounds each pair in unstoppable comfort

a fresh smooth ribbing that won't budge

OS1st TA4 Thin Air No Show Sock (Unisex) - Steel Blue Size:Medium (M) this sandal is designed toLight as Air, Thin and Mighty Engineered for runners and athletes who demand breathability without sacrificing performance. Thin Air Performance Socks feature Skin Thin heat release zones and woven lift bars to increase airflow and reduce moisture, keeping your feet cool, dry, and blister free. Ultra breathable Skin Thin zones Enhance ventilation and prevent overheating. Moisture wicking fabric Keeps feet dry to reduce blisters and irritation.