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Asynja Jacket [M's, W's]


Asinha jacket

Lightweight Trekking Waterproof Jacket

Klettalmusen's signature lightweight shell jacket developed for lightweight mountaineering. Made of 3 layers of waterproof Coutan® with just the right amount of stretch, it offers a uniquely supple feel like no other. Although it has a stylish design that is easy to wear around town, the small details are typical of Klettalmusen, making it a model that many people choose as their first shell jacket. It weighs only 340g while being waterproof and durable. A lightweight shell jacket that has been stripped down to all its clutter.

At Klettalmusen, we develop products with the premise that they will be used for a long time. You can get a glimpse of that belief by looking at the details of each product. For example, waterproof zippers are not used because they inevitably deteriorate over time. Instead, a storm flap covers the zipper for added weather protection. Also, the sleeves are designed to be adjusted with cords instead of Velcro. Velcro does not stick and is prone to malfunction in harsh, cold regions, and is designed to be easily repaired by the user.

Klettalmusen's signature triangular pattern cutting is derived not from a visual design element but from the pursuit of uncompromising functionality. The raglan structure has no seam tape in the shoulder area where it interferes with the backpack, and the unique pattern cutting, where the back is made up of a single panel including the sleeves, are some of the features.

The fabric is Coutan® 3 layer. With Klettalmusen's proprietary waterproof and breathable technology, we have developed a PTFE-free membrane and are free from fluorine compounds during production, improving both the performance and sustainability of existing fabrics. Developed to improve. It's flexible, has great stretch, and is 100% fluorine-free. The outer fabric is a stretch material that uses a hybrid textile that blends elastane with polyamide made from recycled raw materials, and the lining uses corduroy-patterned polyamide to improve comfort.

Click here to learn more about Klettalmusen fabrics and technology.

Key Features

- Panel type hood compatible with helmets without compromising functionality
- 3D adjustable hood that closely follows head movements and does not obstruct vision
- Collapsible soft foam brim that can be shaped to any desired shape
- Storm flap under zipper
- Diagonal offset zipper prevents wear and tear from chins and layering and water ingress
- Double zipper that adjusts the opening for perfect ventilation and ventilation
- Lightweight cord lock adjuster for one-handed adjustment even with gloves on
- Hanging loop on the back
- Pockets located where backpack belts and harnesses function
- Zipped security pocket for essentials
- Slanted side hand pockets made of ventilation mesh material that doubles as ventilation
- Yoke shoulder pattern with no seams on the shoulders to avoid interference with the backpack
- Windstretch™ material reinforcement
- Triangle reflector for increased visibility in dimly lit environments
- Seam taping for complete waterproofing


- Weight: 347 g (M)
- Water Column: > 20,000 mm
- Moisture Vapor Permeability: - > 20,000 g/m²
- MFR (Mass Flow Resistance): 10


Main Fabric:
3L Cutan®
100% Pre-Consumer Recycled Polyamide, 103 g/m², DWR Coating, PU Membrane, bluesign® Approved Fabric, GRS - Global Recycled Standard, Fluorocarbon free
Coutan® is a proprietary waterproof and breathable technology developed by Klettalmusen, which has developed a PTFE-free membrane and eliminated fluorine compounds during production, improving the performance and sustainability of existing fabrics. Developed to improve both sex. Coutan® fabric is flexible, has excellent stretch and is 100% fluorine-free. Constructed of 3 or 2.5 layers of membrane fabric, they are highly waterproof and breathable and are impregnated with a fluorine-free, water-repellent impregnant. The membrane is made from polyurethane and is hydrophilic. Coutan® Super Stretch consists of three layers: an inner layer of polyamide, a central waterproof polyurethane membrane and an outer layer of polyamide and stretch fibers. These three layers of fabric are laminated to form one piece of fabric. Coutan® Stretch RP consists of three layers: an inner polyester fabric, a waterproof polyester interlayer, and an outer fabric made from 100% recycled polyester (RP). These three layers of fabric are stacked together to form one piece of fabric. Coutan® Stretch RP is 100% recyclable.

Secondary Fabric:
Ultramid, WindStretch™
Sleeve Bottom Hem, Body Bottom Hem 85% Ultramid® Bio-Mass Balanced Polyamide, 15% Elastane, 159 g/m²,
Windstretch™ is a softshell material with excellent abrasion resistance and stretch that allows for greater movement. It has excellent breathability, moisture absorption, and quick drying properties, making it suitable for intense exercise. It has excellent wind resistance and is used in soft shell products where flexibility and durability are important. It maintains its appearance without losing color or pilling even after heavy use. Light Windstretch 159 g/m² is Klettalmusen's lightest, quick-drying and stretchiest softshell material. Made from a blend of 85% recycled polyamide and 15% elastane with a fluorine-free, water-repellent finish.

More Information of Klättermusen Fabric and Technology
Click here to learn more about Klettalmusen fabrics and technology.


- Machine wash on a gentle cycle below 30°C.
- Do not bleach.
- Do not tumble dry.
- Iron at low temperature.
- Do not dry clean.

Size Guide

- Sizes are international sizes.
- Designed for a regular fit.
- Long sleeve length so as not to restrict arm movement.
- Model is wearing size M. Chest measurement: 96 cm, height: 185 cm.
- Length: 78.5 cm

Size Chart



Measuring Guide

1. Chest - Wrap the measuring tape under your arms and around the widest part of your chest. Take a deep breath and check to see if the tape measure is too tight.

2. Waist Place the measuring tape around your waist at the smallest point around your navel, relax deeply and take a deep breath to make sure the measuring tape is not placed too tightly .

3. Sleeve Length - Find the highest point of your neck with your fingers and start from there and place the measuring tape. Next, place the tape measure along your shoulders and lower it down your arms. Bend your arm slightly and place the tape measure on your elbow, then lower it to the vertebrae of your wrist and measure.

4. Back Length - Use your fingers to find the highest point of your neck, start from there and measure to the same point you used to measure your waist. Tip: Wrap a webbing belt around your waist as a guide so you know exactly how far down you should measure.

5. Seat - Wrap the measuring tape around the widest part of your buttocks. At this time, be careful not to make the tape too tight.

6. Inseam - Place the tape measure between your crotch area and measure from there to the inside of your foot at the ankle.

service & warranty
Product warranty

sputnik shop is the official importer and sole distributor in Japan of all the brands we sell.

We offer a variety of product warranties and services to help you purchase with confidence.

All purchased products come with free shipping, returns, and size exchanges. We also guarantee against damage after use.

Officially imported product

This is the official shop of the import sales agent.

1 year warranty
Product warranty

We provide a free warranty against product defects for one year after purchase.

crush replace
crash replace

Even if it gets damaged after use, it can be replaced under the guarantee system.

free exchange
Free replacement

Size exchange is possible within 7 days after purchase

free return
Free returns

Free returns available within 7 days of purchase

free shipping
free shipping

All products have free shipping within Japan.

Asynja Jacket [M's, W's]