Thumb loop holds hand in ideal position & helps reduce fatigue. Adjustable, padded shoulder strap for comfort. Buckle closure allows for custom fit using one hand. Adjustable strap accommodates many sizes. Breathable mesh, lightweight, durable material for comfortable fit. Large envelope design to allow use with cold compresses. Designed to provide you with the optimal support you need while assuring proper fit and comfort. Latex free. Made in China.