What Our Gearhead(R) Experts Are Saying: "I reach for these bibs on storm days and long tours. The GORE-TEX shell is truly dependable, and having both inner and outer thigh vents makes a huge difference on big climbs. The drop-seat side zip is clutch in the backcountry, and the beacon-ready chest pocket keeps essentials secure. They move well, breathe well, and stay dry-simple as that."Big lines, high output, changing weather-Burton builds the AK GORE-TEX 2L Kimmy Bib Pant for it all. We count on the AK GORE-TEX 2L Kimmy Bib Pant early and often because Burton pairs proven 2-layer GORE-TEX waterproofing with a smart bib design that thrives from skintrack to storm laps. Right away, the articulated patterning and relaxed, ride-ready fit move naturally as we boot, traverse, and drop into fresh snow. Technical details seal the deal. Fully sealed seams and a storm-worthy torso rise keep blower pow out, while both inner and outer thigh vents deliver powerful airflow when we're grinding uphill. The side-zip drop seat makes backcountry breaks fast and easy, and zippered chest storage includes a beacon clip for secure carry. With dialed pocketing, an elastic back panel for comfort, and adjustable suspenders to fine-tune the fit, these bibs are a hard-charging staple for deep days and big missions.