The Zen Sack exceeds rigorous safety standards, both mandatory and voluntary, by over 8 times. Tests have been performed in leading safety laboratories and inspected by pediatric pulmonologists for breathing safety. The gently weighted Zen Sack echoes your reassuring touch on baby's chest, so your little one always feels comforted and secure, like in your embrace! Helps transition from any swaddle Can be worn backwards by tummy sleepers who can roll independently Zen Sack Classic is perfect for year-round comfort Small: Age: 0-6 months Weight: 7-18 lbs / 3-8 kgs Height: 21-30 inches / 53-76 cms Medium: Age: 6-15 months Weight: 16-26 lbs / 7-12 kgs Height: 26-33 inches / 66-84 cmsZen Sack Large: Age: 15-24 months Weight: 26-36 lbs / 12-16 kgs Height: 31-38 inches / 78-96 cms * When determining which size is best for your baby, look at the minimum weight, and the maximum height. Your baby should not be below the minimum weight, but they should have at least 2 inches to grow into the maximum height. Fabric details: Made from 100% breathable cotton Perfect for year-round comfort TOG 0.5 Care details: Wash in cold water on delicate cycle Tumble dry on low heat
