Perfect for hot sleepers, cotton percale is woven with a balanced one-over-one-under technique that provides a crisp, breathable, and lightweight feel that will remind you of a night at your favorite luxury hotel. Our percale sheets are made from long-staple organic cotton to ensure that they are as pure as they are soft. Materials: Long-staple organic cotton. Weave: One-over-one-under percale weave for durability and a matte finish. Thread count: 300 thread count is breathable and cooling. Nontoxic integrity: No harsh chemical fabric treatments like formaldehyde resins or heavy metal dyes. Screened for 15,000+ toxic substances. Breathability: Organic cotton’s breathability allows for cooler, comfier sleep compared to polyester or rayon. Standard Set Includes: 1 fitted sheet, 1 flat sheet, 2 pillowcases. Naturepedic Certifications: Certified Organic by the Global Organic Textile Standard Certified Organic Latex by the Global Organic Latex Standard Certified by the Organic Exchange OCS100 Certification Program for Organic Content Standard Certified Non-Toxic by MADE SAFE UL/GREENGUARD Gold Certification for chemical emissions testing Certified for the Forest Stewardship Council