When you're headed out for some high-altitude hiking, be sure to grab your Patagonia Crosstrek Hybrid Hoody Jacket to keep you warm once you get past the treeline. This fleece jacket will keep your bones from shuddering with cold, with its snugly, soft interior. The added hybrid external panel keeps the elements from getting to the high-loft lining so you can stay warmer and dryer. The fitted, sleek hood keeps the cold air out and fits nicely under a helmet.