Don't let wet weather ruin your backpacking trip when the Mammut Men's Mellow Jacket can protect you instead. This jacket's DryTech 2. 5 layer shell has the same waterproof breathable rating as most ski jackets, so you know you can rely on it in a downpour. Fully taped seams enhance waterproofing by preventing a single raindrop from seeping through. Mammut also added zippers under each arm for ventilation, adjustments at the hood, hem, and cuffs for a secure fit, and zippered side pockets that you can access mid hike even with a backpack on.