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Arm: Measure from the center back of the neck, across the top of the shoulder, down the outside of the arm, over the elbow to the prominent wrist bone, with your arm bent at a 90-degree angle and your hand placed on your hip. Chest: Place the measuring tape under your arms and measure around the fullest part of your chest. Waist: Measure around the narrowest part of your waist. Hips: Measure around the fullest part of your hips. Inseam: Measure from the top of the inside of your thigh down the leg to the bottom of your ankle. If you prefer longer pants, measure down toward the bottom of your foot.

Fit may vary depending on style and personal preference. Size XXS XS S M L XL XXL 3XL Arm 81.5 cm 81.5–82 cm 82.5–84 cm 84–84.5 cm 84.5–85.5 cm 85.5–86.5 cm 86.5–88.5 cm 88.5–89.5 cm Chest 81–86 cm 86–93 cm 93–99 cm 99–104 cm 104–109 cm 109–117 cm 117–127 cm 127–137 cm Waist 69–74 cm 74–79 cm 79–84 cm 84–89 cm 89–94 cm 94–102 cm 102–112 cm 112–130 cm Hips 85–90 cm 90–94 cm 94–98 cm 98–103 cm 103–108 cm 108–116 cm 116–126 cm 126–133 cm Women's Equivalent XS S M L XL XXL 3XL — Inseam Length Short Regular Tall   77 cm 83 cm 88 cm

Men's Burton [ak] Acamar GORE-TEX PRO 3L Bib Pants

Professional GORE-TEX PRO 3L Protection for the Most Demanding Mountain Days

The Men's Burton [ak] Acamar GORE-TEX PRO 3L Bib Pants are technical bib pants designed for demanding big-mountain riding, backcountry missions, heli-accessed terrain and intensive use by riders who spend long days in the mountains. The three-layer GORE-TEX PRO construction delivers Burton's highest level of durability, waterproofing and breathability, while the stretch bib upper provides natural freedom of movement and helps release excess heat.

Characteristics

The lower section of the pants is made from durable GORE-TEX RGD Pro Shell 3-Layer Nylon 80D Plain Weave fabric, designed for intensive use in the harshest conditions. The bib upper uses 4-way stretch nylon double-weave fabric to improve mobility and breathability. Articulated Patterning and Kinetic Garment Construction support a full range of movement while riding, touring and moving through demanding mountain terrain.

Ventilation, Mobility and [ak] Functionality

Crossflow Venting™ combines continuous inner-thigh vents with additional exterior thigh vents to release excess heat quickly during high-output activity. The stretch back panel and breathable bib upper improve comfort while moving, while adjustable suspenders allow precise fit customization. Zippered Drop-Seat Construction makes bathroom breaks easier without removing the entire bib.

Product Features:

• GORE-TEX PRO 3L: highly durable, waterproof and breathable GORE-TEX construction designed for professional use and the most demanding weather conditions.
• Durable 80D Fabric: the lower section uses GORE-TEX RGD Pro Shell 3-Layer Nylon 80D Plain Weave for high resistance to intensive use.
• Stretch Woven Bib Upper: stretch upper section improves breathability and allows natural freedom of movement.
• Stretch Woven Back Panel: stretch back panel improves mobility and heat release.
• Power Mesh Back Panel: mesh panel further supports breathability and freedom of movement.
• Regular Fit: comfortable fit that is neither too tight nor overly loose, leaving enough room for natural movement.
• Articulated Patterning: anatomical shaping improves mobility while riding and moving through technical terrain.
• Kinetic Garment Construction: technical panel placement supports a natural range of motion during active use.
• Crossflow Venting™: advanced ventilation system allows quick temperature regulation during intensive activity.
• Continuous Inner Thigh Vents: continuous mesh-lined inner-thigh vents provide effective airflow.
• Exterior Thigh Vents: additional outer thigh vents increase temperature-control options.
• Adjustable Hook-and-Loop Suspenders: adjustable suspenders allow precise bib-height customization.
• Zippered Drop-Seat Construction: zippered rear construction makes bathroom breaks easier without removing the entire bib.
• RECCO® Reflector: integrated reflector improves detectability by compatible rescue systems.
• Fully Taped Seams: help prevent moisture from entering through the fabric seam lines.
• YKK® Water-Resistant Zippers: improve protection against snow and moisture.
• Reinforced Kick Panels: reinforced lower-leg panels improve durability in areas especially exposed to abrasion and damage.
• Anti-Scuff Cuff: reinforced lower cuffs help reduce material wear while walking and riding.
• Elasticized Adjustable Cuffs: elastic and adjustable lower-leg openings allow fit customization around boots.
• Triple Needle Reinforced Stitching: triple-needle stitching increases durability in areas exposed to greater stress.
• Beacon-Friendly Power Mesh Pockets: Power Mesh compartments with attachment loops inside both thigh pockets are designed for secure avalanche beacon storage.
• Zippered Chest Pockets: include media ports and webbing loops for convenient organization of equipment and electronics.
• External Chest Power Mesh Dump Pockets: external mesh chest pockets provide quick access to frequently used accessories.
• Zippered Handwarmer Pockets: expandable bellow construction increases available storage space.
• Exterior Utility Loops: external loops allow small pieces of equipment to be attached and organized.
• No Intentionally Added PFAS: the membrane and/or water-repellent finish are made without intentionally added PFAS.

Technical Specifications:

• Fit: Regular Fit
• Type: Bib / Shell
• Insulation: None
• Lower Fabric: GORE-TEX RGD Pro Shell 3-Layer Nylon 80D Plain Weave Fabric
• Upper Fabric: 4-Way Stretch Nylon Double Weave
• Construction: GORE-TEX PRO 3L
• Seams: Fully taped
• Ventilation: Crossflow Venting™ – Mesh-Lined No-Snag Continuous Inner Thigh Vents and Exterior Thigh Vents
• Suspenders: Adjustable Hook-and-Loop Suspenders
• Back Panel: Stretch Woven Back Panel and Power Mesh Back Panel
• Leg Details: Reinforced Kick Panels, Anti-Scuff Cuff and Elasticized Adjustable Cuffs
• Drop Seat: Zippered Drop-Seat Construction
• Zippers: YKK® Water-Resistant Zippers
• Pockets: Beacon-Friendly Power Mesh Pockets with loops inside both thigh pockets, Zippered Chest Pockets with Media Ports and Webbing Loops, Zippered Handwarmer Pockets with Expandable Bellow and External Chest Power Mesh Dump Pockets
• Additional Features: RECCO® Reflector, Articulated Patterning, Kinetic Garment Construction, Triple Needle Reinforced Stitching and Exterior Utility Loops
• Technologies: GORE-TEX PRO 3L, Crossflow Venting™, RECCO®