Giro Bike Helmet Set - Giro Scamp Youth Bike Helmet, Giro Kids Bike Helmet, Toddler Helmet - with Cute Emoji Waterproof Stickers (Scamp - Matte Dark Red, X-Small)

My 1 year old is big for her age, last head measurement she was 80th percentile. I bought the XS & its perfect. It has an adjustable band inside so there is room for her to grow AND if her head was smaller we wouldve been able to make it work too. Glad I didnt buy the S. It is stable on her noggin, no sliding around, im confident it will stay in place if she fell. It is stylish, minimalist, and feels very high quality. Ill be buying the S when she outgrows this one. Might even grab one for my nephew!