evo.com | Outdoor Research Down Jackets > Pertex Quantum meets serious down loft in the Outdoor Research Helium XT Down Hoodie, built for temperatures that turn brutal above treeline. A waterproof Pertex Shield panel reinforces the hood and shoulders so wind-driven snow doesn't soak the insulation underneath, and the classic fit layers cleanly under a hardshell for the coldest belays and highest camps. When margin for error gets thin, this is the piece you reach for. Regular Fit Brushed Tricot Hand Pockets Waterproof Overlays Toray Dermizax(TM) 2.75L 100% Nylon 15D Ripstop 61 G/M2. Main Shell bluesign(R) approved Toray 100% Recycled Nylon 20D Ripstop 40 G/M2. Responsibly Sourced Down Insulation 800 Fill Power. | Outdoor Research Helium XT Down Hoodie Men's 2027 - Medium Brown | Nylon