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When the season throws cataclysmic snowfall at you mid-run, there's only one pant that's got you covered, literally. The Burton AK 3L Freebird Bib Pants are made of GORE-TEX™ Pro 3-Layer Fabric, giving you insane Guaranteed to Keep You Dry waterproof/breathable protection for uncompromising comfort no matter what. Burton's [ak] fit is cut for articulation so that when you are hiking or navigating a tricky line, your Freebird Bib Pants move with you. For ultimate comfort in any winter condition you could possible imagine, trust in the Burton AK 3L Freebird Bib Pants.
Nylon
GORE-TEX™ Pro Membrane – Engineered for extended and extreme conditions, Burton's GORE-TEX® Pro outerwear is the optimum solution to meet the needs of our team, outdoor professionals, and serious skiers with tough, extremely breathable, waterproof and windproof protection. All components are built for maximized ruggedness while strict textile performance specifications ensure optimum strength and must pass Gore's toughest test conditions and most aggressiveness rainstorm test. GORE-TEX® Pro 3-Layer construction comprises a special high performance GORE-TEX® membrane bonded to a tough outer material and Gore's patent pending micro grid backing. The benefit is no movement between the three layers, which means greater durability, and an incredibly strong yet lightweight garment.
70D Gore Micro Grid Backer
40D GORE-TEX® Stretch Upper Chest and Back Panel Fabric
AK Fit – A performance oriented, articulated fit with cutlines and patterning engineered to mimic the body’s natural flex while riding and hiking. [ak] is loose but not baggy for wearing First Layer® and mid-layers underneath.The result is a higher degree of mobility that enhances the function-first design and style of [ak].
Adjustable Suspender System
Redesigned Chest Pockets Allow Easy Access Through Pit Zips™ of [ak] Jackets
Fully Taped Seams – Fully taped seams keep out cold air and moisture.
GORE-SEAM® Tape [13 mm]
YKK® Matte Water-resistant Zippers
Reinforced Inner Ankle Kick Patches For Strength When Skinning or Sledding
| 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 |