93% Cotton, 7% Elastane no 【Arms Up Swaddle & Arms In/Out Design】The transitional swaddle 3-6 months provides the baby with the enclosed feeling of being swaddled in the mother's womb while allowing unrestricted movement. The arms in/out cuffs enable the baby to keep their arms in their preferred natural position. With arms-in, it reduces the startle reflex. One-arm-out allows for self-soothing, while two-arms-out facilitates an easy transition from swaddle to sleep sack. 【Widened Hem for Healthy Hip Development】Specially designed with a widened hem to accommodate a baby's M-shaped leg position. The 3-6 months baby swaddle provides ample space for their hips and legs to move freely. This promotes natural hip joint development and encourages a scientifically correct sleeping position. Ditch the risky loose blankets, our unique 'arms up' swaddle ensures a secure, snug, and safer sleeping environment. 【Advanced One-way Moisture-wicking Technology】KIDIRA's baby transitional swaddle 3-6 months utilize advanced one-way moisture-wicking technology. The inner layer boasts a unique honeycomb-shaped water-guiding channel. Should your baby sweat or become damp, this channel swiftly absorbs and transfers the moisture to the swaddle's outer layer, ensuring the baby's skin remains dry and breathable. A peacefully and comfortably sleeping baby. 【Foot Button Design with Unrestricted Freedom】KIDIRA's baby sleep sack 3-6 months features unique foot buttons on the leg section, ensuring threefold benefits: preventing overheating, adjusting for babies with longer torsos, and catering to those who prefer unrestricted feet. Plus, simply flip the buttoned section over to ensure zero scratching, keeping your baby's delicate skin unharmed. 【Sleep in Preferred Position with Arms Freedom】With KIDIRA's swaddle blankets, babies can move and position their arms freely, letting them self-soothe by finding the most comforting pose, whether arms up, stretched to the sides, hands on chest, flat down, one-arm-out or two-arms-out. Arms-In to reduce startle reflex, Arms-Out for easy transition from baby swaddle to baby sleep sack. KIDIRA Transition Swaddle