PlayaPup Pup Rashguard Shirts: Are designed with an attractive print and solid fabric combination to offer a fashion-oriented shirt popular for dogs and owners alike. Fashionable lightweight shirts are great for water activities. Lightweight/Sun Protective fabrics will keep your dog s coat cool. Fabrics dry quickly, so no more worries about seeing your pup in saggy apparel . Shirts are also super soft and stretch. Shirts are 80/20 Nylon/Lycra. Shirts are made from UPF 50+ rated fabrics, which is the highest sun protection provided by apparel, and block 97.5% of harmful UV rays. All our PlayaPup apparel, belly bands and hats are made from Chemical Free fabrics! No sunscreen needed for sensitive pooches. Female and Male shirts follow the same sizing.