1. Size: S (hat circumference is about 48 cm), M (hat circumference is about 50 cm), L (hat circumference is about 52 cm), XL (hat circumference is about 54 cm)
2. Weight: about 40 grams
3. Material: acrylic fiber with cotton inside
4. Applicable age: It is recommended for babies around 3-12 months
5. Applicable gender: both male and female
6. Applicable season: spring, summer and autumn
7. Features: unique shape, soft and breathable, versatile in personality, comfortable to wear, safe material, easy to clean, not easy to fade, exquisite workmanship, durable