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Details

  • Midweight polyester and polypropylene fabric wicks moisture and keeps you comfortable during high-output activity and dries quickly to regulate temperature
  • A smooth surface makes it easy to put on additional layers, and mechanical stretch woven into the fabric moves with you
  • Encapsulated silver ions help fight odors
  • Fabric provides UPF 50+ sun protection, shielding skin from harmful ultraviolet rays
  • Gusseted underarms allow a full range of motion without binding
  • Flatlock seams feel great next to skin; heat transfer label gets rid of that annoying tag
  • The Arc'teryx Phase AR long underwear zip-neck top offers a next-to-skin fit

Imported.

View all Arc'teryx Men's Long Underwear Tops

REI membership

Specs

Best Use Running
Shirt Style Zip-front
Fabric (Body) 87% polyester/13% polypropylene / (panels) 70% polyester/30% polypropylene
Sun-Protective Fabric Yes
Moisture Wicking Yes
Quick Drying Yes
Underwear Weight Midweight
Sleeve Length Long Sleeve
Gender Men's

Size chart

Sizing notes

SHORT: Some pants are available in short sizes, which generally means an inseam that is 2 inches shorter than regular sizes. TALL: Some pants are available in tall sizes, which generally means an inseam that is 3 inches longer than regular sizes.

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