This helmet has a breathable 3-layer structure to securely protect a baby's head. I bought it to prevent bumps, but my baby didn't wear it much, so it's only been worn a few times. I think it's in relatively good condition, but please understand that it has been used a few times. Although backpacks are cute, babies often fall sideways, so this helmet type is recommended for babies who are starting to stand or walk. - Brand: ibul Kerata - Model Name: Bump Prevention Helmet - Design: Cherry Pattern - Structure: 3-layer structure - Features: Breathable double structure - Material: Lightweight cushion Thank you for looking.