The StormLine’s underarm gussets and ultra-stretchy fabric add mobility and durability, while the climbing-helmet-compatible hood makes it perfect for on-route escapades when inclement weather rolls in. The StormLine also has an adjustable hem and cuffs for dialing in the fit, and when the sun comes out, the shell stows into the right-hand pocket and clips to a harness or bag with a carabiner clip loop.