Suggested size: 11cm: 0-6 Months 12cm: 6-12 Months 13cm: 12-18 Months SOFT &KEEP WARM: These baby booties are made of soft, comfortable and breathable cotton/fleece. Making the baby more comfortable to wear can be worn all year round. It is lightweight baby can easily lift will not be a burden and leaving a certain space will not hinder the growth of your baby's feet. Easy On & Off: Adjustable hook & loop and ankle cotton elastic sock mouth makes our infant booties easy to put on, take off. Considering the soft skin of babies, the elastic around ankle area is not tight which causes less pressure on baby sensitive ankle and gives more room for feet to breathe without scratching their chubby legs. NON SLIP SOLE: These baby slippers have soft non-slip points and wear resistant soles will provide traction to keep your little one from sliding on tile or hardwood floors. They are very flexible and elastic baby girl boy boots which can support natural foot movement. PERFECT GIFT: These cozy, warm booties are a must-have for boys and girls. Stylish adorable baby socks shoes can be matched with any clothes, great for walking indoors or outdoors,party, daily use and make a perfect baby shower or baby registry gifts. DURABLE & STYLISH: Our lovely baby shoes are designed to be long lasting. Maintain its shape and comfort no matter how many times you wash it. These adorable baby house shoes are also machine washable and dryer-safe for ease and convenience.