Men's Thetis Zip Neck

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5.0 star rating 0 Reviews
Runs Small
Runs Slightly Small
True to Size
Runs Slightly Large
Runs Large

Fleece Protection

Arc'teryx Thetis Zip Neck is a fleece pull-over that functions as a comfortable standalone on warmer trails, and as a mid layer for colder hikes. The fleece is stretchy and has a smooth faced exterior, while the grid backing retains for heat, providing a quality warmth-to-weight ratio. The mid height collar gives some extra warmth on cold mornings while the 3/4 zipper allows for unzipped temperature regulation when you become overheated. Arc'teryx designed the Thetis with flatlock seam construction to reduce internal chafing and decked it out with handy features like thumbhole sleeves and a zippered security pocket that has a semi-auto locking mechanism.

  • Midweight, smooth faced fleece with grid backing
  • Fleece has good stretch and a solid warmth-to-weight ratio
  • 3/4 zipper aid temperature regulation
  • Mid height collar
  • Thumbholes hold sleeve in position
  • Flatlock construction
  • Zippered security pocket on hip has semiauto locking zip
  • Arc'teryx Endorphin Collection


  • [body] Polartec® Power Dry Jersey Grid – 84% polyester, 16% elastane
Wind Resistance
  • Yes
  • Trim
  • 205g
  • S, M, L, XL
  • 1 zippered security pocket on hip has semi-auto lock zipper
Recommended Use

  • Rest and Recovery, Hiking, Running, Trail Running, Trekking, 3-season Activities, Urban Activities, Alpine Activities

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