Alto Men's Ultralight Down Jacket — Black

The Alto Ultralight is a lightweight, packable down jacket. The ultralight Pertex® Quantum 10D shell (26 g/m²) is filled with 900-fill-power 90/10 goose down, delivering exceptional warmth at a fraction of the weight and pack size of conventional insulated jackets.

Synthetic Primaloft® Gold High Loft in the hood and Primaloft® Gold Active+ at the underarms are placed in the zones most exposed to compression and moisture. The technical fit and articulated patterning give you a full range of movement, and the side pockets stay accessible when you're wearing a climbing harness or a backpack. The fully adjustable hood is helmet-compatible.

- Pertex® Quantum 10D outer fabric (26 g/m²): ultralight
- 900-fill-power 90/10 goose down (125 g in size M) for outstanding warmth at minimal weight and pack size
- Primaloft® Gold High Loft (90 g/m²) in the hood and Primaloft® Gold Active+ (100 g/m²) at the underarms keep insulating even when damp in exposed zones
- Technical fit with articulated patterning for unrestricted movement
- Fully adjustable, helmet-compatible hood
- High-placed zip side pockets, compatible with a climbing harness and backpack hip belt
- Adjustable hem keeps out the wind
- Internal open stash pockets
- Integrated stuff sack for compact packing on the move