Speedo Men's UPF 50+ Easy Long Sleeve Rashguard Swim Tee 100% Polyester Jersey. Imported UV Block the Burn  with UPF 50+ protective fabric features: More body coverage for greater sun protection. Tighter knit fabric for higher level of protection from the sun's harmful rays. Improved fit so over-stretched product does not decrease the UPF rating. Dries quickly.