Country of Origin: China, Japan Material: DS dry face mesh (100% polyester), shoulder and armpit switching parts/DS dry reverse mesh (100% polyester) Features: Sweat-absorbent, quick-drying, stretchy Size: S, M, L, O, XO Size S: Height: 5 ft 5.0 inches (165 cm), Chest: 34.6 inches Size M: Height 5 ft 6.9 inches (170 cm), Chest 36.2 inches