"What Our Gearhead® 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."