What Our Gearhead® Experts Are Saying:"I’ve been rotating the Treeline 3-in-1 HS Hooded Jacket through shoulder seasons and winter hikes. The ePE GORE-TEX shell is legit waterproof and breathes well on climbs, and the recycled-down inner is cozy on its own in town. Being able to wear either piece solo or zipped together makes packing simple for unpredictable weather."We reach for the Treeline 3-in-1 HS Hooded Jacket when the forecast can’t make up its mind. The outer shell uses 2-layer GORE-TEX with a PFC-free ePE membrane for waterproof, windproof protection, while the lightweight inner puffy adds reliable warmth with recycled down. Zip them together for full-on winter, or wear each layer independently as temps swing from bluebird to blustery.Dialed features keep us comfortable on the move: pit zips dump heat on uphill grinds, the single-pull hood seals out spindrift, and a water-repellent front zip and hem adjusters fine-tune coverage. With harness-friendly hand pockets on the shell and two zip pockets on the inner, this modular system keeps essentials close and our layering streamlined from trailhead to town.
Responsible Collection: Recycled/Repurposed, Bluesign Approved;
Shell Material: [membrane/laminate] GORE-TEX ePE (2-layer), [face fabric] 75D x 75D 100% polyester, PFC-free DWR finish, [lining] 100% recycled polyester;
Removable Liner Material: [face fabric] 100% recycled nylon, [lining] 100% recycled polyester, [insulation] recycled down;
Waterproof Rating: 28,000mm;
Breathability Rating: 20,000g/m²;
Seams: fully sealed;
Fit: regular;
Length: hip;
Hood: adjustable;
Pockets: [shell] 2 zippered hand, [liner jacket] 2 zippered hand;
Venting: 2 zippered underarm;
Claimed Weight: 1lb 9.5oz;
Activity: hiking, casual;
Manufacturer Warranty: limited 2 year;
storecredits: 0.0;
Style Variants
Available Colors: Marine/Silver Sage, Vin/Black
Size Reference for Mammut Hooded Jacket - Women's
Available Sizes: XS, S, L, XL
