Castelli UPF 50 + Light Arm Sleeves Size:XLarge All the performance of technical

All the performance of technical fabric but with the comfort of your favourite long sleeve t-shirt the Youth Ranger Long Sleeve Jersey lives to keep you cool when you hit the trail

Weight: 310g (Pair)

This elaborate design combines active vents in the helmet's shell with exhaust channels inside the helmet that thrust fresh

Redesigned centre tread for ultimate speed

Castelli UPF 50 + Light Arm Sleeves Size:XLarge All the performance of technicalAbout Castelli UPF 50 + Light Arm SleevesFor maximum sun protection with minimal insulation. Castelli can officially only rate these warmers at UPF 50+, but in their laboratory tests they actually blocked 99. 8 percent of damaging UV rays. They used a polyester base that is not only more effective than nylon at blocking UV rays but is also much better at keeping you dry, which means these arm sleeves are better in both cooler and warmer conditions.