? Size Suggestion: Size S length 70cm fit for baby 6-18 months(suggest height 70-85cm), Size M length 80cm fit for baby of 12-24months(suggest height 80-95cm), Size L length 90cm fit for baby of 2-4 years (suggest height 90-105cm), Size XL length 100cm fit for baby of 5-6 years (suggest height 100-115cm),Size XXL length 110cm fit for baby of 6-7 years(suggest height 110-125cm). Please choose the appropriate size according to the specific height and weight of your baby. ? Hem Widen: 8cm Hem widen of the cotton toddler sleeping bag with feet makes sure your lovely baby enjoy the freedom to crawl run and jump without any restraint.Full ensure baby's easy play and happy activity time. ? Exclusive Bottom Full Opening Design: The cotton sleeping bag with legs bottom full opening design is better nappy changing for little baby,convenient for toddlers to go to the bathroom. Two way zipper plus bottom full opening design make put on and take off in a second come true.Plz note: Size S/M has an open crotch and closed legs design,Size L/XL/XXL bottom full open design. Babies can keep warm in winter with our thick sleep bag they can means keep colds and fevers away!. ? Unique Removable Sleeves : The baby sleep bags with legs removable sleeves is designed for dealing with temperature differences. The sleeves at the two shoulders can be removed by zipper when the temperature is high to avoid overheating. The sleeves can protect babies from catching cold in a frigid climate. This 2.5 tog sleeping bag with legs for girls and boys is ideal for temperature from 10? - 20?. ? Ultra cozy and Extra Breathable Baby Sleeping Bag with legs : The 2.5 tog toddler sleeping bag with feet made of 100% island cotton. Advanced grinding technology makes it extreme comfortable ultra breathable and super warm. Special filling technology can keep the cotton from running and clumping. No pilling,no fade,no deformation,no fluorescent! The winter sleeping bag for toddler sure will create a comfortable and safe sleeping environment in winter. Machine Washable.