OEKO-TEX Certified. LONG STAPLE ECO-FRIENDLY OEKO-TEX CERTIFIED 100% COTTON Crisp, cool and light percale weave with a matte finish. 100% cotton. AND they fit your bed like a glove. You'll feel like you’ve escaped to a 5-star hotel.
BTW: We do not expect you to lift your huge & heavy mattress! These sheets go on the first time just like your old-style fitted sheet; just slip over the mattress. After that the base stays put, and the sheet zips off and on to change.