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When it comes to the backcountry, serious adventurers know that lightweight, breathable, and packable gear is non-negotiable. Enter the Burton AK Kalausi 3L GORE-TEX Bibs – the ultimate solution that checks off all the boxes. These bibs bring backcountry minimalism and unmatched durability to the table, ensuring they can go the distance season after season. From the regular articulated fit to the innovative kinetic garment construction, these bibs offer unrestricted movement and supreme comfort for the extreme minimalist who craves the lightest, most breathable, and most comfortable kit. Say goodbye to restrictions and hello to your new favorite backcountry companion.
GORE-TEX C-Knit Stretch 3-Layer Nylon 30D Ripstop Weave Fabric Lower
Pertex Equilibrium® 4-Way Stretch Nylon 40D Duplex Double Weave Fabric Upper
bluesign® Approved – bluesign® materials are responsibly crafted in manufacturing processes that manage natural resources efficiently, produce cleaner air and water emissions, and use only chemicals that are deemed safe for people and planet.
GORE-TEX 3L – Burly and tough, this premium waterproof breathable material is for riders seeking the ultimate in comfort and durable waterproof/breathable protection.
2 Way Stretch
Regular Articulated Fit – A performance-oriented, articulated fit with cutlines and patterning engineered to mimic the body’s natural flex while riding and hiking. The result is a higher degree of mobility that enhances the function‑first design and style of [ak].
Kinetic Garment Construction – The kinetic garment construction "wraps the body" and changes the grain of the fabric in a way that amplifies its inherent bias stretch, resulting in a fabric that moves as the body moves without restriction.
Beacon Friendly Power Mesh Pocket with Loop Inside Right and Left Thigh Pockets
Zippered Chest Pockets with Media Ports and Webbing Loops
Zippered Thigh Pockets
Exterior Thigh Vents
Mesh-Lined No-Snag Continuous Inner Thigh Vent
Crossflow Venting™
Elasticized Cuffs
Lightweight Highly Breathable Pertex Double Weave Bib Upper
RECCO Reflector
Reinforced Kick Panels
Zippered Drop-Seat Construction
YKK® Water Resistant Zippers
Breathability Rating (g) | Breathability Level | Activity Level |
0 - 10000 | Low to moderate breathability | Resort skiing & snowboarding / walking / low intensity activity |
11000 - 15000 | Moderate breathability | Resort skiing & snowboarding / hiking / moderate intensity activity |
16000 - 20000 | High breathability | Backcountry skiing & snowboarding / backpacking / moderate to high intensity activity |
21000+ | Very high breathability | Backcountry skiing & snowboarding / biking / high intensity activity |
Warmth | Description | Ideal Conditions |
Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |