The perfect combo of an active performance outer and a warmand insulating fleece liner, this neck warmer is breathable andquick-drying, with a velvety-soft feel. Size: Kids Youth, One Size fits most ages 7-12. Dimensions - 9.75" (W) x 9.25" (L). Outer shell: Comfort Shell Performance Fabric - 61% Polyester/31% Recycled Polyester/8% Spandex. Stay warm and sun protected: UPF 50+ Sun Protection - Blocks 97% of UV Rays Fully-lined with 100% polyester VelvetSoft for extra comfortable next-to-skin softness.