Our “C” products are old versions, discontinued, or occasionally do not meet our quality standard though they are fully functional.

The Reason for “C”: Smaller Neck and Armholes

The pipings used around the neck and armholes shrank by prewashing, resulting in one-size smaller neck and armholes though there are variations in shrinkage. Therefore, we recommend the one-size larger than your usual size.
The issue was found right before the product was released, and we canceled the regular sale of the product.

The piping used in Alpha Vest contains polyurethane, which is likely to shrink when subjected to the heat of 80-100 degrees Celcius or higher.

The piping may have shrunk during the prewashing in the production process, in which
excessive heat was unintentionally applied.

We improved the production process to prevent shrinkage by applying steam before the piping attachment process.

Feeling a little chilly? Wear this vest over your base layer. This is an ultralight and simple vest-style active insulation, suitable when you are on the move.

The front part uses thick Polartec Alpha Direct (136g/m2), which is thermal and air-permeable. It prevents overheating and offers great comfort when in action. If it’s chilly when resting, wear a shell over it to keep your core warm. The vest also boosts the warmth around the abdomen and chest of the body if you sleep wearing it.

The back of the vest is not insulated and is made of one piece of highly breathable, ultralight Shadow Rip* used for the UL Shirt, prioritizing the lightweight and compactness. This is because your back is usually insulated by your backpack when you are on the move, or by the sleeping pad when you are asleep.
It is also recommended to wear it with a highly air-permeable All-weather series jacket!

*The fabric has been revised from Pertex Quantum Air to Teijin Shadow Rip since 2022.

For details, please visit Alpha Vest product page.

Made in Gifu, Japan

Material:
Front: Polartec Alpha Direct (100% Polyester) 136g/m2
Back: Shadow Rip (100% Polyester) 56g/m²
C0 DWR
Weight:
69g (Size S)
77g (Size M)
84g (Size L)
93g (Size XL)
Size:
UNISEX | S / M / L / XL

• Use neutral detergent. Machine wash, gentle or delicate at 30°C or lower.
• Wash separately or use a laundry net.
• When the back fabric of this item is wet from perspiration and in contact with white or light-colored wool or silk clothes for a long period of time, the components in perspiration may cause the color transfer.
• Wash to remove the perspiration after use.

　

• Avoid bleach or fabric softener.
• Line-dry in the shade.

　

• Tumble dry, low at 60℃ or lower.
• Do not iron. Do not dry clean.
• If necessary, wash to remove the fuzz from the fabric before first use.