The Therm-a-Rest Trekker Pillow Case is stuffable and small enough to fold up and fit into a pocket. The Trekker is a lighter version of the Therm-a-Rest Travel Pillow Case, but with less weight and bulk. It is the best choice for weight and space conscious use on the trail. The Trekker folds up small enough to fit in a shirt pocket to save pack space and when stuffed with your soft extras, its brushed polyester exterior makes a luxurious place for to lay your head.