Vipp towels sets included: 2 small towels 18 in. x 26 in., 2 medium towels 22 in. x 38 in., and 2 large towels 30 in. x 54 in. Vipp Towels are made from a bamboo fiber and cotton blend with a shimmering surface effect. They combine the unique absorbency and antibacterial properties of the bamboo fibers with the strength and softness of cotton. A unique feature of the towels is that each one comes with a silicone strap attached to hang the towel. 65% cotton and 35% bamboo fibers.