Patagonia Nano-Air Light Bottom - Men's

Why We Like The Patagonia Nano-Air Light Bottom

Patagonia's one-of-a-kind Nano-Air Light Bottom uses their lighter-than-air technology to keep us warm, mobile, and active as we explore the alpine. Beneath the recycled ripstop shell, revolutionary FullRange insulation provides the heat we need for the cold conditions without inhibiting stretch or blocking breathability. The slim fit is articulated for the perfect range of motion, and it layers comfortably under our shell on wet and snowy adventures. An elastic waist and stretchy cuffs make these pants easy to pull on, even over our clunky alpine boots. And, of course, in true Patagonia style, this style is crafted with recycled materials throughout and protected with an eco-friendly PFC-free DWR finish.

Details

Lightweight midlayer bottoms keep us moving fast at high elevations
Recycled ripstop shell offers durability for encounters with rough terrain
FullRange insulation is breathable while delivering warmth
Stretch-knit cuffs stretch over alpine boots for easy layering
Slim fit for reduced bulk and maximized mobility
Elastic waistband for easy-on with an internal drawstring to adjust the fit
Anti-odor treatment at hips and cuffs for long-trek comfort
Zippered thigh pocket offers access to essentials while wearing a harness
Item #PATZAOG

Responsible Collection: Recycled/Repurposed, [side panels, cuffs material] bluesign® APPROVED
Material: [face fabric, lining] 30D 100% recycled polyester ripstop, PFC-free DWR treatment, [side panels, cuffs] 74% NetPlus post-consumer recycled nylon, 26% spandex power-stretch knit, miDori bioSoft treatment
Insulation: 40g FullRange (93% recycled polyester, 7% polyester)
Fit: slim
Pockets: 1 zippered thigh
Waist: elastic, internal drawcord
Anti-Odor: HeiQ Pure
Claimed Weight: 8.8oz
Activity: climb, ski, snowboard
Manufacturer Warranty: lifetime

Patagonia

Nano-Air

Always On

Find Your Nano-Air

Nano-Air Ultralight

20g Insulation

A breathable, featherlight layer for nonstop alpine efforts.

Nano-Air Light

40g Insulation

Perfect balance of warmth and breathability for a range of conditions.

Nano-Air

60g Insulation

Innovative, breathable insulation tuned for daily wear.

Inside The Nano-Air

Match The Weight To The Day

Nano-Air's FullRange insulation comes in three weights, 20 to 60 grams, matched to how hard the day is working the body.

Durable Water Repellent Finish

Resists light moisture, without intentionally added PFAS.

Lightweight Features

Tuned For Comfort

FullRange insulation holds body heat while letting excess heat escape through the outer fabric. A microtextured liner pulls moisture off the skin and dries fast, keeping the layer from feeling wet or clammy through changes in effort.

Nano-Air Light

Steady warmth for cold-condition days spent moving at a steady pace. Twenty-gram FullRange insulation under the arms manages heat where the body runs hottest, so the layer stays on through changes in effort.