HAZARD 4 Combat Base(TM) Lycra Rashguard by (R) 100% Spandex Velcro panels on arms for modular patches - this saves money; swap patches as shirts get washed. Velcro panels on chest for name tape & larger patches; Our lycra is highly UV-cut rated to prevent sun burn. Front hem loop (tie into swim trunk string to prevent rising); Elastic loop at the thumbs to keep the sleeves from rising up. Stealthy, unobtrusive Hazard 4 logo for uniform use; Total blind-stitching for flat seams and no chafing. Sizes: S/M/L/XL/2XL; Main Material: UV-Protection Lycra.