Features:Cotton-Linen Feel & Softness: Garment-washed percale cotton brings linen-like breathability and a relaxed feel, getting softer over time for year-round cool and dry sleep. Secure Fit & Convenient Design: 18" deep pocket with full elastic fits most mattresses tightly; 8" envelope closure on pillowcases for easy use and a neat look. Durable & Easy Care: Stronger yarns resist pilling and maintain shape; pre-washed fabric reduces shrinkage; machine washable and tumble dry low for effortless care. Material: 100% cotton (In a washed percale weave, reinforced with 53% stronger yarns and pre-washed for shrinkage control) Certifications: OEKO-TEX certified (SH025 129841) What's Included:6-piece set: 1 flat sheet, 1 fitted sheet, 4 pillowcases, all in a fabric storage bag.