Fit Guide Our rashguard styles are a tighter fit than most other brands. We recommend ordering 1 size larger than you'd usually order.Benefits Light compression fit feels good in the water. UPF 50+ rating blocks harmful sun rays. 4-way stretch Raglan sleeves improve fit and flexibility. Flatlock stitching is low profile and prevents chafing. Boardshort tie loop sits inside the waistband so you can lock things down in turbulent water. Details 80% recycled nylon / 20% spandex. Machine wash cold. Hang dry. Imported The Florence Marine X Long Sleeve Rashguard features a 50+ UPF rating. Designed with a snug, compression-like fit, this rashguard is designed for long sessions in and on the water.