Ultra-Lightweight & All-Around Protection: Weighing just 0.26lb, this helmet offers 360° wrap-around safety without straining your toddler's neck. It's perfectly sized for little ones aged 8-24 months (head circumference: 15.7-18.9in). Cool, Comfortable & Breathable Design: Features 29 ventilation holes and a soft, breathable cotton lining to keep your baby's head cool and dry. The sweat-absorbent material is gentle on skin for comfortable all-day wear. Reliable Impact Absorption: The high-density EVA foam filling provides excellent shock absorption, effectively protecting your baby's head from bumps and falls against sharp corners and furniture. Secure & Fit: An adjustable cotton Velcro strap ensures a secure and custom fit that adapts to your growing child, providing safe support without squeezing their delicate skull. The Perfect Practical Gift: A thoughtful and popular gift for holidays like Christmas or Baby Showers. It's machine washable for easy care (hand wash and hang dry are recommended for best results). Baby Helmet for Crawling Walking - Breathable Baby Head Protector for 1-2 Years, Infant Safety Helmets for Toddler Walking, Expandable and Adjustable, Ultra-Lightweight