Aptly named for its ability to withstand severe weather conditions (i.e., SV), the Arc'teryx Thorium SV Men's Down Jacket is a wondrously warm standalone piece for cold, dry conditions, also performing admirably under a waterproof/breathable shell when outside wind and moisture threaten your alpine climb, ski-mountaineering adventure, or cross-town jaunt.
Using Arc'teryx's Down Composite Mapping technology, the lofty 750-fill European grey goose down throughout the body provides fiery warmth in cold-to-frigid conditions. Realizing that down's heat-trapping loft becomes compromised once wet, Arc'teryx placed Coreloft 100 and 140 synthetic insulation throughout areas prone to moisture build-up from outside elements and perspiration, such as the hood, cuffs, and underarms. The result is a down-synthetic hybrid jacket that retains warmth during aerobic alpine activities, such as ski-mountaineering, alpine climbing, and cold-weather trekking.
For the jacket's shell/outer fabric, Arc'teryx placed Arato40 nylon, which is a lightweight, yet extremely durable material that stands up to regular use and abuse in the alpine. This shell is finished with a DWR to bead-off outside moisture from seeping through and compromising the down insulation inside. Further contributing to the jacket's high levels of warmth, Box-wall baffles maximize loft, enhancing the down's ability to retain body heat in cold conditions. Other key features include a low-profile, helmet-compatible StormHood, elastic-bound cuffs, drawcord adjustable hem, interior stash pockets, and No Slip Zip front closure.
- 750-fill European grey goose down (body)
- Coreloft 100 and 140 synthetic insulation (hood, cuffs, underarms)
- Arato40 nylon shell with DWR treatment
- Box-wall baffles
- No Slip Zip (front zipper)
- Adjustable drawcord waist
- Helmet-compatible, single-adjustable StormHood
- Elastic cuffs