The main body material is CORDURA® brand fabric, which is woven from INVISTA's CORDURA® brand fabric production and certified factory that meets quality standards using two twisted Hollofil Air™ (66 nylon hollow fibers) of 840D for the warp yarn and 420D for the weft yarn. It is a fabric that has passed the standards and has strength against friction, tearing, fraying, etc.
The back side is coated with PU and laminated with special breathable and waterproof film L-VENT® to further increase water resistance.It has a 3-layer structure with tricot nylon laminated together. Master-piece original fabric “MASTERTEX-09™” combines durability, water resistance, and water repellency.

The leather used is high-quality steer leather from North America, and during the tanning stage, a 3M waterproofing agent is added to the drum and penetrates into the leather. After that, we create a base by dyeing and impregnating it with oil, and then spray the company's waterproofing agent at the finishing stage to further increase its waterproofness.
Waterproof and stain-resistant leather that has passed 3M's "SCOTCHGARD®" monitoring test. The test is performed even if the surface is scraped, so the effectiveness will not be diminished.

The bottom and other materials are made of INVISTA's 1680D Cordura Ballistic® nylon, which has approximately five times the wear and tear strength and durability of regular nylon, and the back side is treated with PVC to further improve strength and waterproofness. In terms of functionality, the shoulder harness cushions use Outlast®, a temperature-regulating material developed for NASA, and the mesh material is finer than previously used materials and is more comfortable to the touch.

The shoulder strap is equipped with an original mechanism called "m-strap 2" that reduces the load on the body. In addition to its cushioning properties, it also has the ability to fit shoulders of various body types, making it comfortable to use.

At the bottom of the main unit, we have placed an original tape that is woven into a looped tape with slits made from reflective fabric to ensure safety at night.

*For this product, sales channels are restricted due to production reasons.

Please note that it is not completely waterproof and cannot prevent water from entering through the needle holes in the sewn parts. If the nylon material is left wet for a long time, the film on the back may peel off or deteriorate, so be sure to dry it before storing. Water repellent treatment is a surface treatment, so as you continue to use it, the effect will fade due to friction and other factors. Water repellency will also be lost due to dust and other dirt that adheres to the fabric. After use, we recommend that you remove dirt by brushing or using a commercially available water repellent spray frequently.
*Please use the water repellent spray that matches the material.
Before using, please read the instructions carefully and then test spray on an inconspicuous area. The included leather may have wrinkles and scratches that are unique to individual leather. Please note that there is a possibility of color migration, discoloration or fading due to friction etc. Please note that since this is natural leather, it may stain if it gets wet with rain or water. Product specifications are subject to change without notice.

・Material:MASTERTEX-09™ (CORDURA Ballistic® Hollofil Air™ fabric 1680d × 840d 100% nylon breathable waterproof film L-Vent® laminated)
CORDURA Ballistic® fabric 1680d nylon (PVC coating)
Steer leather (3M SCOTCHGARD®)
・Weight:Approximately 1910g
・Size:W340 H525 D150mm