Nexus MIPS Snow Helmet Size:Small Junior Last Boot shell addresses Do yourself a favour Junior Last Boot shell addresses common problem fit areas for a comfortable fit Focus on Comfort Comfort fit liners feature soft materials for all day cushioning and warmth Durable Aluminum Buckles 100% Aluminum buckles provide long wearing durability and ease of operation GripWalk® Compatible (Sold Separately) GripWalk® soles feature a rubber tread and rockered toe for a more natural walking motion and increased traction Pockets: Back patch low profile design with a durable hardshell exterior a fully vented material that absorbs more energy in a crash than traditional foam construction alone