65% cotton/ 35% polyesterImportedThermoplastic rubber(TPR) sole SHOE SIZE: Small=6-7 D(M) US; Medium=8-9 D(M) US; Large=10-12 D(M) US. Smaller size please buy the WOMEN one(search ASIN:B017T2TKPM).ATTRACTIVE PACKAGED. With a very nice matching materials drawstring travel bag perfect for travel,also as a great gift.T-SHIRT TYPE OF MATERIAL. Ultra soft and breathable cotton materials, give you a unique experience.WEARING WITHOUT YOUR SOCKS. These will keep you feet comfortable any season, without being too warm in the summer.MACHINE WASHABLE. Easy maintenance, machine washable.