Super soft yet technical youth light weight base layer set that includes top and bottom pieces. Made of a soft 100% polyester Lycra spandex blend, this base layer set can be used for all kinds of outdoor activities as the foundation for any layering system. The material incorporates moisture transfer fibers for superior moisture wicking performance. Slip on this super comfortable base layer set and there is a good chance it will be worn 24/7! Limited lifetime warranty against material or workmanship defect. When you receive a Lucky Bums product, if you are not 100% satisfied with your purchase, let us know. We are here for our customers and will respond promptly and professionally in order to fix any problems the product may have, if you received a faulty item, we will replace it immediately. Lucky Bums is a family business created by a love of the outdoors, when you purchase a product by us, you become family too.