The Arc'teryx Theta SV Jacket has been built to withstand the harshest conditions, & is Arc'teryx's toughest & longest length GORE-TEX Pro Shell jacket. It has a slightly relaxed athletic fit that lets you layer up when you need to, articulated shaping for greater mobility & a drop back hem with full seat coverage. It also uses Tiny GORE seam tape for reduced weight & bulk, & has a helmet-compatible hood, laminated zippers throughout & underarm vents. Glossary GORE-TEX Pro Shell Pro shell is the first choice for professionals whose livelihood depends on enduring the worst conditions. Pro Shell will maintain water & windproofness while providing crucial breathability under the most extreme & demanding conditions. Tiny GORE seam tape Minimizes seam tape in critical zones, reducing the product's overall weight & bulk while increasing the breathable surface area.