• Wearable blanket designed for summertime temps • Breathable sleep sack for free movement and total comfort • Covered tab zipper with extra softness after each wash • Bottom-to-top zipper for easy putting on a wiggly baby • Made with 2 layers of breathable, 100% cotton muslin • Available in 6-12 months and 12-18 months sizes • Tog rating: 1.0 for nursery temperatures between 68°F and 75°F • Machine washable for easy care and gets softer with each wash