Arc'teryx Men's Alpha SV Jacket Spotlight 1,200+ Blue And White Tropical Fish In Tank Stock Photos, Pictures. The Alpha SV GORE TEX Pro Jacket is the pinnacle Arc'teryx shell. Showcasing their most durable 100 denier recycled face fabric and GORE TEX Pro with Most Rugged technology, the result is absolute protection in the harshest conditions. The streamlined feature set honed for climbing includes a helmet compatible StormHood and zipped chest pockets that are accessible when wearing a harness. A zipped bicep pocket and two internal pockets further enhance your stow options. No lift gusseted underarms, anatomical shaping, and articulated patterning combine to enable a full range of movement, so you can climb unrestricted. An embedded RECCO reflector increases mountain safety.