For those gram counting climbers and trekkers who are minimalists that still demand a high level of performance, grab the Arc’teryx Alpha SL Jacket, and get going. This is weather protection in an ultra lightweight package at its finest. Never worry about finding space for this jacket as it is extremely packable and just whip it out whenever the weather turns savage for superior defense. Waterproof fabric all jacked up on Gore-Tex ensures that rain stays on the outside, but the Alpha SL remains highly breathable. As an incredibly versatile piece of outerwear, you can bet that you’ll be covered anywhere from a laid-back day hike, to a demanding multi-day excursion. Even though it won’t feel like much when you put it on, there are still some solid features built in, like pit zips and a pair of hand pockets that crank up the functionality. Flip up the helmet compatible hood and solidify your fortress of weather defense. With a generous cut for layering and an anatomically correct fit, the Arc’teryx Alpha SL Jacket is primed to protect you from any beastly storm that nature can conjure.