Dakine Women's Apparel Size Chart The Flow Long Sleeve features a lightweight and comfortable polyester/elastane fabric blend, and Flatlock seam construction. Available in Long Sleeve or Short Sleeve, with a built-in boardshort connector and athletic-fitting snug design, the Flow is a stylish and comfortable technical-style top. And with the added benefit of UPF 50+ sun protection, this is a must-have addition to your summer watersports wardrobe. Features: - 6.5 oz snug fit surf shirt - UPF 50+ sun protection - Boardshort connector - Flatlock seams - Materials: 89% Polyester 11% Elastane