Description of Royal Robbins Desert Pucker S/S Shirt Royal Robbins' woven Polynosic Rayon and polyester blend results in garments that are soft and have great drape. A sand-washed finish enhances softness and virtually eliminates any shrinkage. Features: Wrinkle resistant UPF 20+ 4.5oz, 80% polynosic rayon, 30% polyester, sanded Pewter buttons Straight hem Traditional fit