100% Cotton Imported 100% Organic Cotton: Made of 100% organic cotton, soft and breathable, guaranteeing the utmost comfort and the protection of infant's sensitive skin. Yoofoss baby romper is certified to meet Global Organic Textile Standard (GOTS), dedicating to ensure your baby's safety and coziness. Spilt-leg Design: Foot openings design of toddler sleep sack with legs, promotes both freedom and independence, allowing your baby to explore their surroundings while wearing sleep sacks. Our Toddler sleep sack with feet is especially suitable for early walkers and toddlers taking their first steps. Hidden 2-way Zipper: Zipper protection avoids any potential scratching baby's delicate skin. Baby sleeping bag with right and bottom double zippers allow for effortless dressing and making nighttime changes easier. High-grade zippers of baby sleeping sack glide smoothly without getting stuck or jammed, easily open and close. Safe Sleep: Fitted neckline and sleeveless design provides appropriately flexibility and snugness, while better regulates your baby's temperature and prevent from over-heating. 0.5 TOG toddler wearable blanket keeps infant warm and cozy at night and ideal for all seasons. Machine Washable - This sleep sacks for toddlers come with 2 pack and 3 sizes available for your choices; S for 12-24 Months, M for 24-36 Months, L for 3-4T. Walker sleep sack can withstand hundreds of washes without fading and shrinking. Made of 100% cotton fabric and fluffy polyester filling, our sleep sack ensures the utmost comfort and the protection of toddler's sensitive skin. Yoofoss baby sleep sack with sleeves is certified to meet Consumer Product Safety Commission (CPSC), dedicating to offer your baby's safety and coziness.