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Castelli UPF 50+ Light Arm Sleeves

Castelli UPF 50+ Light Arm Sleeves
  • Color: White
  • Color: Black
Please select options


We can officially only rate these warmers at UPF 50+, but in our laboratory tests they actually blocked 99.8 percent of damaging UV rays. We 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. We’ve kept the construction very clean to eliminate seams that can rub, and we used our double-sided silicone elastic to make sure they stay in place. They fold up extremely small, so they’re great to stick in your pockets for your next big mountain day.

  • Solare fabric keeps the chill off without causing overheating

  • Polyester based for excellent moisture management

  • Double-side silicone elastic at top for excellent grip

  • 12°-35°C / 53°-95°F

  • Weight: 67g

  • UPF 50+ protection

Part Numbers

Option UPC MPN Store SKU
White / Large 08055688216627 P16036001-4 ARM527413041
White / X-Large 08055688216634 P16036001-5 ARM523426481
Black / Medium 08055688216658 P16036010-3 ARM529551521
Black / Large 08055688206444 P16036010-4 ARM528261941
Black / X-Large 08055688216665 P16036010-5 ARM524314781