CONTENTS: 69% POLYESTER, 16% NYLON, 14% COPPER, 1% LYCRA. NON-BINDING YARN WITH SPANDEX HUGS LEG WITHOUT RESTRICTION. HAND LINKED SMOOTH TOE SEAM FOR EXTRA PROTECTION. TECHNOLOGICALLY ADVANCED MOISTURE-GUARD WICKING SYSTEM. EXTRA CUSHIONING OPTION FOR SUPERIOR COMFORT & SHOCK ABSORPTION. DOCTOR RECOMMENDED FOR DIABETES.