What Our Gearhead(R) Experts Are Saying: "I grab the Smythe Bib when I'm heading out for big days in the backcountry. It's way lighter than my resort gear but still super tough. The 30K breathability makes a huge difference on long climbs, and I love how the pockets are harness-compatible-perfect for ski mountaineering or sled-access days. Easily the most comfortable touring bib I've worn." For deep backcountry days when every ounce counts and breathability is non-negotiable, we trust the Flylow Smythe Bib Pant. Designed with alpine ascents and technical terrain in mind, the Smythe is Flylow's lightest and most touring-focused bib. The 3-layer Intuitive PHD Stretch fabric delivers impressive 30K/30K waterproof breathability with the mobility we need to skin, bootpack, or scramble without restriction. These bibs are made for big missions-but still hold up to years of wear, thanks to reinforced cuffs and a durable build. The streamlined design includes intelligent storage with a chest pocket that sits comfortably under backpack straps and thigh pockets built to work under a harness. A dedicated beacon pocket with a loop and sleeve keeps your safety gear secure. Articulated knees, full seam taping, and cross-flow venting round out the package, making the Smythe Bib a go-to for serious touring, technical descents, and deep winter objectives.