Worn once. Perfect condition. Transitional swaddles (for babies 3-6 months & 12-18 lbs) are perfect for babies who are transitioning out of a swaddle but aren’t quite ready for safe sleep with a blanket yet! embe swaddles offer the world's only legs in & legs out patented technology that offers the versatility of legs in warmth & legs out cooling and heat dissipation to help keep your newborn from dangerously overheating. Our Short Sleeve Transitional Swaddle also features our arms in & arms out options: arms in, 1 arm out, or both arms out!