Outdoor Research Helium Down Hoodie - Men's Atlantic Extra Large. Its secret sauce is Pertex Quantum with Diamond Fuse Technology which protects the 800+ fill down with an exceptionally durable and abrasion resistant shell without adding weight. The Helium Down Hoodie even uses an exclusive waterproof version of Pertex Shield with Diamond Fuse fabric on hood and shoulders for added weather invincibility. Specifications for Outdoor Research Helium Down Hoodie - Men's: Manufacturer: Outdoor Research Center Back Length: 29.25 in Gender: Male Age Group: Adults Lining Material: Nylon 20D Ripstop Features of Outdoor Research Helium Down Hoodie - Men's Hybrid-mapped construction Adjustable hood Single separating center front zipper External chest pocket Brushed tricot hand pockets Dual internal stash pockets Left hand pocket doubles as stuff sack Carabiner loop with key clip Dlean finish elastic drawcord hem Low-pro binding No-snag webbing behind center front zipper Package Contents: Outdoor Research Helium Down Hoodie - Men's Outdoor Research 2775720252009: Helium Down Hoodie - Men's Atlantic Extra Large