Key Features: Outside quality acrylic fiber and polyester liner, soft, skin-friendly, breathable and warm Keep your baby warm overnight, anti-kick and reduce the risk of catching cold Full coverage design from hat to feet makes baby feel secured for a more peaceful sleep 4 zippers design: hat zipper, front zipper and two zippers at bottom The sleep sack can be freely changed and adjusted as well Can be used as sleep mat, blanket, stroller/crib wrap and more Suitable for home, daily, travelling or going outside with daddy & mommy Note: 1. Please allow slight 1-3cm difference due to manual measurement and a little color variation for different display setting 2. Size doesn't fit all, please check carefully before placing order Warm Tips: Due to the process demand, the buttton hole of the sleeping bag is small when it is just produced. The raw material is the yarn, so the buttonhole will gradually become loose after using. It will be more difficult to buckle for the first time. This is normal phenomenon. It will be easy to buckle the button later after several times of using. Please kindly try as we recommend above. Adjustable Zipper Hat Warm Liner Quality Knitted Yarn Specification: Size: 29.5" x 13.8" ( 75 x 35cm ) Weight: 0.8 lb (370g) Knit & Fleece Suitable for 0-12 Month baby girls or boys All around coverage sleeping sack, wrap whole body and also foot as a footmuff as well Can Be Used as Blanket, Baby Stroller Warp, Sleeping Bag, Sleeping Mat, Swaddle, Baby Crib Wrap etc Baby Swaddle Bed Frame Bamboo Bathtub Standing Table 12 Pack LED Candles 12 Pack 36 LED Fairy Lights Add to Cart Buying Options Add to Cart Add to Cart Buying Options Customer Reviews 4.5 out of 5 stars 426 4.0 out of 5 stars 36 3.9 out of 5 stars 65 4.2 out of 5 stars 115 4.3 out of 5 stars 248 Price $39.99$39.99 — no data $45.99$45.99 $23.99$23.99 — no data no data no data no data no data no data