Tuga Women's Wetsuit Hybrid Zip Top, UPF 50+ Sun Protection Main: 100% Neoprene. Panels: 80% Nylon / 20% Spandex Made in USA and Imported Women's long sleeve thermal wet suit top with zipper, made from neoprene and nylon/spandex to provide warmth and flexibility in one swim shirt EXCELLENT SUN PROTECTION: Swimsuit fabrics are rated UPF 50+ and provide maximum UV sun protection by blocking 98% of UVA + UVB sun rays, wet or dry; similar rating as SPF for sunscreens. Covered areas don't need sunscreen. SAFE: Tuga swimwear is made from fabrics that are free of sunscreen chemicals, great for sensitive skin. We make skin safe and reef safe bathing suits! PRODUCT FEATURES: Main body made from 1.5mm neoprene to provide core body warmth for indoor pools or during chilly weather, side panels/sleeves/collar made from 80% Nylon/20% Spandex to provide ease of movement while swimming, flat lock stitching throughout to reduce chafing Fitted - narrower through chest and shoulders than our Regular Fit