HALO SleepSack, 100% Cotton Wearable Blanket, Swaddle Transition Sleeping Bag Midnight Moons-grey Footballs Colorful Giraffes All size Medium, 6-12 Months WEARABLE BLANKET - for safer sleep. Keeps them cozy and can’t be kicked off SEAMLESS TRANSITION - recommended after HALO SleepSack swaddle for less sleep interruption EASY DIAPER CHANGES - with zipper that opens from bottom. Zipper cover at neckline prevents scratches. EXTRA LENGTH - get more wear without sizing up as quickly HIP-HEALTHY - approved by the International Hip Dysplasia institute for healthy hip development