The Obermeyer Boy's Calgary Beanie is made from 100% acrylic yarn with a reverse rib-knit to create a cool geometric pattern. It features an inner fleece headband that absorbs excess moisture and helps keep it itch-free. This tall beanie is smooth and warm, so he'll be comfortable all day! The eye-catching and fresh Obermeyer Boy's Calgary Beanie is certain to be his go to choice this season.