By every measure, Supima cotton has a leg up on the competition—especially when you look at the Onsen towel When there’s only one material in a product like our 100% Supima cotton towels, you can’t accept anything less than the best. The three properties that make Supima superior—strength, softness, and color retention—are what make it the perfect material for the Onsen towel. Comfort: The smooth, clean fibers of the Supima cotton make yarns whose softness is straight up unrivaled by any other cotton Resilience: The strength of the fibers not only ensures that the towel lasts a long time, but that it does its job well for the life of the towel Practical Luxury: The combination of softness and strength gives the Onsen towel a luxurious look and feel with no pilling or wrinkling, plus everyday workhorse usability Waffle Weave: Supima is the only fiber we could achieve our signature waffle weave with, which gives Onsen towels their quick-drying breathability and exceptional absorbency Lightweight: Lighter, thinner yarns woven into an open weave result in a remarkably lightweight towel that still feels substantial Colorfastness: The strength and thinness of the Supima fibers allow us to garment wash our towels, giving them rich colors that won’t fade.