Two Sizes! Small & Medium See pics for size details. Material: Cotton Color: Pink Brand: Love to Dream Blanket: Form Swaddle 93% Cotton, 7% Elastane Imported Swaddle UP Helps Baby Self-Soothe: The unique, award winning Arms-Up design of our sleep sack allows natural arms-up sleep, aiding self-soothing for longer sleep. 83% of parents reported an increase in hours slept by their baby when using Swaddle Up Hip Healthy Sleep Sack: Our sleep sacks are super soft and stretchy. The baby swaddle Up offers ample space for hip and leg movement, promoting natural development of the hip joint. Recognized by the International Hip Dysplasia Institute Easy & Safe Sleep: Our Love To Dream Swaddle Up is a safer alternative to a baby blanket. The two-way zipper makes diaper changes a breeze, even in the middle of the night. This baby essentials Swaddle Up makes great baby shower gifts Snug Sleep Sack: Our original Arms-Up swaddle, available in a range of colors & prints, has controlled resistance, ensuring ideal Arms-Up snug fit across the torso to support baby's self-soothing, with no loose layers to kick off during sleep Lightweight Sleep Sack: Our newborn swaddle is made with a single layer of jersey fabric to reduce the risk of overheating. This 1.0 TOG baby sleep sack is ideal for MODERATE room temperatures between 68°F & 75°F. Layer underneath for ideal temperature regulation