The Gotcha Covered Pure Collection uses SKAL 100% certified organic cotton. The fabric is 300ct cotton sateen weave, contains no dyes, and is scoured only. The sheets are sewn with sewn with tailored french seamed corner pockets, and elastic encased on all sides. Single-ply with premium cotton yarn is the only way to ensure a tighter, durable and higher quality sheet. Gotcha Covered uses only high quality fabric with true single ply thread counts. The packaging is even biodegradable, made of hemp and corn film material.