100% bamboo Antibacterial - keeps you odor free and feeling and smelling fresh. Bacteria does not live well in bamboo fabric. Highly sweat absorbent (Pulls moisture from skin for evaporation - moisture wicking) - keeps you dry. Thermo-Control - keeps you cooler in summer and warmer in winter. Super Soft and luxurious feel. UV Protection - Bamboo fabric cuts out 97.5% of harmful UV rays, so perfect for holiday/traveling cover-ups.