Good helmet, it's excellent for protect my son in the way.It's sturdy and it's build with good materials .I'm happy with this helmet.Giro labels this an "infant" helmet, but our 2½ year old is well into toddlerhood and his yellow "chicks" Me2 is growing right along with him.We initially purchased this prior to his 1st birthday, in preparation for rides in the Burley Love this helmet. We had the same one for our older daughter and it fit her from 12 months to 3.5 years! Which is tough at such a rapid growth stage. Bought a 2nd for our youngest and it fits her great as well. And she loves the fun pattern.My 9 month old grandsonWe bought this for our thirteen month old, and it fits him perfectly. To give you an idea of size, at his doctor's appointment last month, his head had an 18.5 inch circumference (74th percentile). I'd say he could have a slightly smaller head and it would still fit okay. There's also plenty of room for him to grow; I'm guessing it'll fit him until he's at least two and a half, maybe three years old.I'm actually a little jealous of this helmet - it's way nicer than mine. It's really easy to adjust, so we loosen it every time we take it off (using the wheel in the back), and tighten it to make sure it fits snugly whenever we put it on. The straps are also easy to adjust, but he can pull them away from his chin pretty easily because he's still a little pudgy. I'm not sure any helmet would be better, though.He wasn't a huge fan of it the first time he wore it, but by the second, he got used it. Now he likes to fidget with the air vents and feel the texture change between the plastic and styrofoam. It also looks really cute on him. The colors are a lot more vibrant than I expected from the photos, and the sun visor is the perfect size. It also looks big enough to protect his nose the next time he face plants by jumping over the handlebars of his trike. We're really happy with this purchase, and are glad his little noggin is going to be kept safe.Makes my baby girl Cry if not properly aligned. The guard for the lower neck/upper chin area is literally mounted backwards. Why? maybe to protect the parents hands? LOLLoved by my toddler. Well made. Good priceThe helmet was too big for our 9-month old daughter so we had to return it (see attached picture). She has an above average head circumference. Too bad we had to return it, because it looked like it was a good helmet. We were not able to use it, so the rating is based on perceived quality.1歳の我が子の初ヘルメットとして購入しました。かぶり物がとにかく嫌なので、かぶせてもすぐに脱いでしまってダメでした。頭囲の調節できる部分が、強い力でひっぱると簡単にヘルメットから外れるので脱げてしまいます。（マジックテープで固定されています）結局調節機能がないヘルメットに買い換えました。かわいいデザインだったので、残念ですが、おとなしくかぶってくれるお子さんだったら問題ないと思います。うちの子もかぶり物が一切苦手で、値段も少し高かったので買うのにとても悩みましたが、とにかく柄が可愛かったのと、サイズが合うものがなかなかなかったので（ＢＥＬＬも良かったのですが在庫切れの物が多く・・・）思い切って頼みました！そしたら子供が意外にもとても気に入ってくれて、帽子など殆ど被らない子が自転車に乗る前からずーっと被っていました☆とにかく気に入ってくれてほっとしました。可愛い！！と見る度に思います、満足。ますます自転車でのお出かけが楽しみになりました。息子はもうすぐ２歳で、頭は大きめですが（51cm）大丈夫でした。ピッタリです☆バンドが両面テープでとめてあるところがあり、そこがとれた。。