Rated TOG 2.5 (TOG Guide). Two-way zip for quick late-night changes. Zero-irritation neck and arm construction. Tear drop-shaped bottom for a hip-healthy fit. CloudBlend™ - 67.5% Lenzing Tencel, 27.5% Modal, 5% Elastane. OEKO-TEX® Certified: Rigorously tested for harmful substances, ensuring utmost safety and peace of mind. CloudBlend™ is designed for brand new baby skin. It's the ultimate breathable, stretchy-soft, moisture-wicking fabric that won't pill or lose its shape. Made from eucalyptus and beech trees, Tencel and Modal are some of the world's most sustainable natural textiles. TOG 2.5 has 80 g DuPont polyester filler. Naturally hypoallergenic and certified non-toxic.