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. Key Features: - Hidden arm snaps, snap close to allow for traditional arms-in swaddling - Leave the arm snaps open for arms-out swaddling - Patented Legs In / Legs Out Design - Cool Down, Warm up or Change Diapers Without Un-Swaddling - No-Breakout Design Means Baby Stays Tucked In, Falls Asleep Faster - Hip Healthy Designation From International Hip Dysplasia Institute