The Core Series delivers technical performance and UPF 50+ protection in a clean, everyday t- shirt look. Designed for use on land or in the water, this lightweight performance top is made from 100% polyester and finished with moisture-wicking, antimicrobial odor management, and wrinkle-resistant durability. A tighter crew neck and streamlined feel give it a more classic tee profile—built for sun protection without the “sun shirt” look. Watersports friendly.