Women's Mammut Treeline Light HS Jacket - black

Built for fast-moving mountain athletes, the Women's Mammut Treeline Light HS Jacket delivers exceptional weather protection in an incredibly lightweight package. Unlike heavier hardshells that slow you down, this 2.5-layer Pertex® Shield jacket balances 20,000 mm waterproofing with 20,000 g/m²/24h breathability, keeping you dry from both rain and sweat during trail running, fast hiking, or mountaineering. The athletic fit and PFC-free DWR treatment make it a responsible choice for high-output adventures.

Highlights

• Pertex® Shield 2.5-layer fabric: 100% polyamide with PU membrane
• High performance: 20,000 mm water column and 20,000 g/m²/24h breathability
• PFC-free DWR treatment for sustainable water repellency
• Adjustable hood for customized protection
• Packs into its own chest pocket for easy storage
• bluesign® PRODUCT certified

In daily use

The Treeline Light HS Jacket is your go-to shell when every gram counts. The water-repellent YKK front zipper keeps moisture out, while the partially elasticated cuffs and hem seal in warmth without restricting movement. The single zippered chest pocket is strategically placed for easy access and doubles as a stuff sack, making the jacket disappear into your pack when the sun returns. The athletic fit allows layering without bulk, and the black colorway pairs effortlessly with any trail kit.

Full specifications

• Product type: Hardshell Jacket
• Gender: Women's
• Size: S (Small)
• Color: Black
• Intended use: Trail Running, Fast Hiking, Mountaineering
• Material technology: Pertex® Shield
• Main fabric: 100% Polyamide
• Membrane material: Polyurethane (PU)
• Construction: 2.5-layer
• Waterproof rating: 20,000 mm water column
• Breathability rating: 20,000 g/m²/24h (MVTR)
• DWR treatment: PFC-free
• Fit: Athletic Fit
• Hood: Adjustable Hood
• Pockets: 1 zippered chest pocket
• Main zipper: Water-repellent YKK front zipper
• Cuffs: Partially elasticated
• Hem: Partially elasticated
• Packability: Stows into chest pocket
• Sustainability certifications: bluesign® PRODUCT

Final note

Lightweight, breathable, and responsibly made, the Treeline Light HS Jacket is an essential layer for women who move fast in the mountains.