Exceptional Quality, Certified Safety

What is Supima® cotton?

At YamaLava, we selected Onsen towels because they are crafted from Supima® cotton—a premium variety grown exclusively in the U.S. that makes up less than 1% of the world's cotton. Its extra-long staple fibers are 50% longer than those of regular cotton, allowing them to be spun into yarn that's up to 45% stronger. The result? Towels that are softer, more durable, and designed to last—so you can enjoy everyday luxury for years to come.

What is OEKO-TEX® STANDARD 100 Certified?

At YamaLava, we selected Onsen towels because they are OEKO-TEX® STANDARD 100 certified, meaning they’ve been rigorously tested to ensure they’re free from harmful substances. This globally recognized certification guarantees that every thread is safe for you and your family, so you can wrap yourself in comfort with total peace of mind.

Natural and Healthy Materials for Your Skin

Exceptional Cotton, Exceptional Comfort.

Onsen towels are made from 100% American-grown, OEKO-TEX® certified cotton for superior absorbency, quick-dry performance, and effortless comfort—free from harmful chemicals and made for everyday use. At YamaLava, we selected Onsen because we believe these qualities make a truly exceptional towel.

Thoughtfully Designed, Perfected Over Time

At YamaLava, we believe a great towel should be as functional as it is comfortable. That's why we selected Onsen, which uses 100% American-grown cotton and thoughtful weaving techniques to create towels that are highly absorbent, breathable, and built to last. Whether you prefer the crisp feel of Onsen's original Waffle Towels or the plush-yet-light Sculpted Terry Collection, both are designed to get better with every wash—so they're always fresh, dry, and ready when you need them.