Nested Bean Like New Condition Zen Sack Classic - Gently Weighted Sleep Sack for Baby 6-15 Months size medium(16-26 lbs), 100% Cotton, Swaddle Transition, 2-Way Zipper, Machine Washable, gender neutral design. Lightly weighted on the chest with non-toxic poly beads 100% soft, breathable cotton Easy to use two-way zipper system and adjustable shoulder snaps Exceeds safety standards with 12 mandatory and 7 voluntary tests passed Perfect for swaddle transition in newborns and infants