100% Cotton Imported Comfy and Ultra Soft: PHF sleep sack is made from high-quality 100% organic cotton, which is super soft, breathable, and lightweight. With every wash, it will become softer and more malleable, ensuring a cozy feel for your baby. With TOG 0.5, our sleep sacks are perfect for all seasons, especially in spring and summer, keeping your baby comfortably warm without overheating, so your baby can enjoy restful sleep year-round. Smooth 2-Way Zipper: Our toddler sleep bag has durable 2-way zipper, which runs from the top to the bottom, makes midnight diaper change easily. The top zipper cover and interior zipper guard prevent rubbing on your baby's sensitive skin and protects baby's chin, ensuring the safety of your beloved baby during every use. Perfect Design: The large space allows baby's hips and legs to move freely and happily,but cannot be kicked off,so baby will stay warm and sleep peacefully all night long.The arm and neck openings sized for a perfect fit, the sleeveless design avoids the risk of overheating, and keeps baby comfortable in all seasons. These designs are great for promoting proper hip development and a perfect bedtime for your baby. 3 Pack: Ensure your baby always has a clean and comfortable sleep with our 3-pack sleepsack set, and the new parent has plenty of time to clean and the baby has more choices using 3 pack sleep sacks. Different patterns have different styles after wearing them. It is a perfect gift for baby. Great for baby registry. 4 Size Options: The sleep sacks are a must-have for your baby's everyday routine,it will provide optimal comfort for undisturbed sleep.There are 4 sizes available for your choices. Small for 0-6 months,10-18lbs, Medium for 6-12 months, 15-24lbs, Large for 12-18 months, 22-28lbs, and X-Large for 18-24 months, 26-36lbs. PHF Lifetime Satisfaction: You can trust PHF brand. If the sleep sacks cannot meet your needs for any reason, please contact us to replace or refund them--No problem! Baby Wearable Blanket