The Outdoor Research Men's Helium HD Jacket provides sanctuary from driving rain when you're hiking, backpacking, and alpine climbing. This ultra light shell weighs a mere 9. 1 ounces while providing waterproof and breathable protection from the elements with its Pertex Shield fabric and fully taped seams. Extremely packable, this shell is highly compressible for stashing into a backpack or carry on bag. Underarm vents dump heat when you're climbing full bore up a technical trail. The adjustable hood has a Halo wire brim that allows excellent peripheral vision. Zippered hand pockets and a Napoleon pocket secure daily accessories and snacks while you're trekking and climbing.