aden + anais Baby Sleeping Bag, 100% Cotton Muslin, Wearable Swaddle Blanket for Girls & Boys, Newborn Sleep Sack, Breathable & Lightweight, TOG Rating 1.0, Rising Star, Large, 12-18 Months

SAFE AND COZY DESIGN- 1 pre-washed sleep sack wearable blankets create a safe sleeping environment for your baby, eliminating the danger of loose blankets TOG rating 1.2
SOFT AND BREATHABLE- Made with two layers of lightweight and ultra-soft 100% cotton muslin, it is exceptionally breathable for optimal airflow, reducing your baby's risk of overheating and ensuring comfortable sleep Sleeveless design reduces the risk of overheating
BABY FRIENDLY- Unzips from the bottom for easy diaper changes. Generous sack design allows room for kicking, but cannot be kicked off so baby stays warm all night
PREMIUM- muslin fabric is ultra-soft and features a durable weave it gets softer and maintains its original shape with each wash and wear Use over regular sleepwear to take the place of loose blankets
SIZING- Small (10-18lbs, 23'' - 28'' inches), Medium (15-24lbs, 26" - 31" inches), Large (22-28lbs, 30" - 34" inches), X-Large (26-36lbs, 35" - 37" inches). Please Refer to size chart for additional sizing