Zpacks Octa Camp Pants

$89.95 USD Weight 5.2 oz / 147 g
Lead Time Ships in 1-3 Business Days

Engineered for outdoor versatility, the ultralight Octa® Camp Pants are crafted with Octa® fleece that offers durability, breathability, and a superior warmth-to-weight ratio. They are excellent as sleep pants, while also doubling as a base layer under backpacking pants or shorts.

A soft, cozy interior ensures all-day comfort, while the tapered design and gusseted crotch provide a streamlined fit that layers easily under pants or hiking shorts. Deep front pockets keep your essentials close, whether you’re on the trail or lounging at camp.

*The length has been increased and is in effect across all sizes as of November 2025 thanks to feedback.

Check out the rest of our Octa® Fleece Collection here.

  • Our 2.35 oz/sqyd Octa® fleece offers exceptional warmth at an incredibly light weight, making it an advanced alternative to traditional fleece. It excels as an active insulation and performs well in a range of temperatures from the 30F's (0 C) to the upper 60F's (20C) while moving.
  • Octa® filament has an octopus-like cross-section with 8 projections, which create air gaps that enhance heat shielding and insulation properties. That unique fiber structure makes Octa® fabrics roughly 50% lighter than regular polyester materials of similar thickness.
  • The interior of the Octa® features a fluffy next-to-skin, brushed surface that traps air to keep you comfy and warm.
  • The mesh exterior is extremely abrasion-resistant, providing better durability than other ultralight fleece options. It also doesn't collect crud like other fleece that is fuzzy on the outside.
  • A minimalist elastic waist band offers a comfortable fit for a range of waist sizes.

  • The waist band features a draw string allowing you to tighten the fit as you lose weight on the trail.

  • A back yoke allows the pants to move and stretch when bending over or squatting down.

  • The gusseted crotch enhances your range of motion and prevents restriction when stepping up and over tall obstacles.

  • Deep front pockets allow you to comfortably carry items like your phone or sunglasses without having to worry about them falling out when sitting down around the campfire.

  • Pairs nicely with our Octa Fleece Hoody and Octa Fleece Hat as a sleep layer.

  • All Zpacks gear has a two year limited warranty against defects in materials or workmanship. Please see our return / warranty policy.

  • Imported.



Small Medium Large Extra-Large
US Men's Size: 28-31 31-34 34-37 37-40
Hip: 43 ½"
(110 cm)
45"
(114 cm)
46 ½"
(118 cm)
48"
(122 cm)
Outseam: 38 ½"
(98 cm)
39 ⅜"
(100 cm)
40"
(102 cm)
41"
(104 cm)
Leg Opening: 12 ¼"
(31 cm)
12 ⅜"
(32 cm)
13"
(33 cm)
13 ⅜"
(34 cm)