NWOT Burton [ak] 457 Japan L / U.S. M 3L Guide Jacket + Down Puffer SET M Blue

ABOUT THE SYSTEM:

The Burton [ak]457 Guide System is a professional-grade, Japan-exclusive alpine kit engineered for the highest level of backcountry utility. Developed under the creative direction of Hiroshi Fujiwara (Fragment Design), the 457 line is the apex of technical snowboarding outerwear. This system consists of two modular assets: the 3L GORE-TEX Pro Guide Jacket and the ultra-packable Light Down Insulator. Purpose-built for Japanese mountain guides, this kit is designed for rapid thermal regulation and total environmental protection.

​THE JACKET: [ak]457 3L GUIDE JACKET

• ​Technical Features:

• ​Membrane: 3-Layer GORE-TEX Pro (Most Rugged) for ultimate waterproofing and breathability.

• ​Safety: Integrated RECCO® Reflector for avalanche rescue searchability.

• ​Utility: Dedicated radio pocket with microphone loops and external access.

• ​Ventilation: High-velocity pit zips for immediate moisture dumping.

• ​Interface: Jacket-to-Pant interface with a removable stretch waist gaiter.

• ​Tech Specs:

• ​Asset ID: BRTN-457-GDE-BLU-M

• ​Material: GORE-TEX Polyester Shell / Fully Taped Seams.

• ​Hardware: YKK® Matte Aquaguard® Water-Resistant Zippers.

​THE PUFFER: [ak]457 LIGHT DOWN INSULATOR

• ​Technical Features:

• ​Thermal Barrier: High-loft traceable down with a diamond-quilt pattern to prevent down-shift and cold spots.

• ​Packability: Integrated stuff sack for minimal footprint in a backcountry pack.

• ​Ergonomics: Stretch binding at cuffs and hem to lock in heat.

• ​Weight: Ultra-lightweight ripstop shell.

• ​Tech Specs:

• ​Asset ID: BRTN-457-DWN-BLK-M

• ​Fill: Premium Down (Traceable).

• ​Finish: DWR (Durable Water Repellent) coating for standalone utility.

​CONDITION:

• ​Guide Jacket: NWOT (New Without Tags). Pristine, unworn condition. No membrane delamination or seam tape degradation.

• ​Light Down Puffer: Used - Excellent. Exceptionally maintained; loft is fully intact with no feathers leaking or abrasions.

• ​The Vault Standard: Every item in this system has been purposely curated and stored in our climate-controlled Vault, monitored for humidity and temperature to ensure that technical membranes and down-loft do not degrade. Our high-quality air filtration system monitors for dust and microbial activity. The Vault is strictly free of UV light to ensure zero material or color degradation.

​SHIPPING:

Fast Dispatch. This system ships within one business day—typically in less than 24 hours. Professionally packaged to ensure the GORE-TEX Pro 3L membrane and down loft are not compromised during transit.

​CURATOR’S NOTE:

​"The [ak]457 Guide System is the 'Robe of Honor' in the technical world. To find the 3L Jacket and the Down Insulator as a matched set is a generational rarity. Because this is a Japan-exclusive line, the tailoring is sharper—this is a Japan Large which fits as a True US Medium. This is a liquidity-grade asset, preserved in a UV-free, humidity-controlled environment to guarantee it performs exactly as intended on day one. A total system for the serious collector."