Triathlon Race Number Belt Reflective With Gel Holders Easy Clasp Easy lock clasp - Faster transition times, attach when on the move Sturdy and Fully elasticated - One size fits all, also fully adjustable. 6 Gel pack holders for that all important fuel when racing or training Available in multiple colors to suit your style and preference Kids sizes can be found here - http://www.amazon.com/Triathlon-Number-Childrens-Reflective-Design/dp/B00KP7I0G4/ref=sr_1_25?s=sporting-goods&ie=UTF8&qid=1452633369&sr=1-25&keywords=race+belt