Early run times. Cold-start rides. Crisp morning sessions. ThermoTech Warming Sleeves deliver warmth, UPF 50+ protection, and full freedom of movement — without the bulk. ThermoTech insulating fabric retains heat where your muscles need it most, lightweight enough to forget you're wearing them, and easy to slip off as the day warms up.

Product Details
  • UPF 50+ sun protection — effective even in cooler months
  • ThermoTech insulating fabric retains warmth without overheating
  • Breathable and moisture-wicking — keeps you dry during activity
  • 4-way stretch for unrestricted movement
  • Lightweight and non-bulky — more than a compression sleeve, less than a jacket
  • Easy slip-on design
  • Pairs with other Sparms UPF 50+ gear for full-body coverage
  • Unisex
Care
  • Machine washable on cold cycle.
  • Use wash bag to protect your Sparms.
  • Do not tumble dry. Hang to dry.
  • Do not use bleach or other strong chemicals.
 
 
 

Size Guide

The upper arm circumference is the total measurement around the widest part of your bicep. Do not use arm length as a guide, as our sleeves feature generous stretch and length to ensure a perfect fit for everyone.

SIZE CHART (cm) J XS S M L XL XXL
Upper Arm Circumference 15 – 16 18 – 24 20 – 28 24 – 32 26 – 40 30 – 45 32 – 48
Best fit for 15.5 21 24 28 33 37.5 40