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Forsete Shirt


faucet shirt

Natural Wool Cotton Flannel Shirt

A natural flannel shirt made from organic cotton and merino wool. The classic design shows Klettalmusen's unchanging attitude. The upper part of the front button opening and closing is fixed with webbing. There are ventilation slits at the hem of the sleeves, and the collar can be locked up to keep out the wind. The shoulders and lower part of the sleeves are reinforced to withstand outdoor use. A chest Napoleon pocket with a large zipper puller can also hold a map or cell phone.

Klettalmusen's cotton products are made exclusively from organic cotton to reduce the impact on the environment. Traditional cotton is considered one of the most environmentally polluting crops due to the large amounts of pesticides and insecticides used during production. Organic cotton is grown without the use of pesticides, chemical fertilizers or genetically modified crops. Klettalmusen only uses cotton that is GOTS certified, the world's highest certification for organic cotton.

Click here to learn more about Klettalmusen fabrics and technology.

Key Features

- Front button closure and webbing belt fastening
- Collar can be locked up to prevent wind
- Reinforced shoulders and lower sleeves with separate fabric
- Can be used as a midlayer using natural fibers
- Ventilation and folding slits at sleeve hem
- Chest pocket with button flap
- Chest Napoleon pocket with large zipper puller


- Weight: 485 g (M)
- MFR (Mass Flow Resistance): 4


Main Fabric:
80% Organic Cotton, 20% Merino Wool, 249 g/m², Mulesing free, Fluorocarbon free
Hillstum® is the technical cotton proprietary material used in our products. At Klettalmusen, we only use organic cotton to reduce our impact on the environment. Traditional cotton is considered one of the most polluted crops due to the extensive use of pesticides and insecticides during production. There are also concerns about worker rights, child labor and unsustainable water consumption. Organic cotton is grown without the use of pesticides, chemical fertilizers or genetically modified crops. Instead, we use methods such as beneficial insects and mechanical weeding to reduce the environmental impact on crops. Cultivation is carried out in an environmentally responsible manner, protecting workers from harmful chemicals during operations and protecting surrounding communities by preventing contamination of drinking water. Our material complies with two third-party certifications for organic cotton: GOTS certification, the world's highest level of certification for organic cotton, and the EU Council's Organic Agriculture Directive.

Shoulders, Lower Arms, Pocket Lid 100% Post-Consumer Recycled Polyester, 155 g/m²

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


- Machine wash on a gentle cycle below 40°C.
- Wash inside out.
- Do not bleach.
- Dry flat.
- Iron at low temperature.
- Dry cleaning recommended.
- Please wash regularly.

Size Guide

- Sizes are international sizes.
- Designed for a slim fit.
- Model is wearing size M. Chest measurement: 96 cm, height: 185 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.

Forsete Shirt