
Garage Grown Gear · Insulation
Alpha Vest by Yamatomichi
Specs
| Denier | 30D |
|---|
Description

Ships in 1-2 business days | Based in Kamakura, Japan | Est. 2011
Warmth where you need it most
Yamatomichi's Alpha Vest uses Alpha™ Direct Fleece on the front for warmth and breathability at your core, while the back is made of light and airy Shadow Rip™ fabric for better airflow where you pack traps heat. This pair works together for exceptional breathability that helps maintain a comfortable body temperature during high output activites. When you're on the move, your shoulders and back tend to heat up. While sleeping, that same area is pressed against a pad, rendering any insulation ineffective; this is why Yamatomichi added insulation to the front of this top, where it matters most. The Alpha Vest will fit seamlessly as a mid-layer in your layering system, keeping you comfortable while cutting down on weight.
Features:
- Keeps your core warm while allowing excess heat and moisture to escape
- Highly breathable
- Traps air for added warmth when paired with a shell or sleeping bag
- Quick drying with low moisture retention for sweat or rain
- Continues to provide warmth even when wet
- Packs down to about the size of a soda can
- Polygiene treatment for semi-permanent antibacterial and odor control
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Sizing: View the sizing guide for Yamatomichi
*If you are debating about sizing, we recommend sizing up
Weight: 2.7oz | 77g (medium)
*Weight may vary due to fabric variation
Materials:
- Back: Shallow Rip™. 100% Polyester (30D, 75% recycled polyester). C0 DWR coating (PFAS-Free). 56g/m²
- Front: Polartec® Alpha™ Direct Fleece. 100% Polyester (63% recycled (Bluesign® and OEKO-TEX® certified). 136g/m²
Made in Aomori/Miyagi Japan
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Care:
- Use a neutral detergent. Machine wash on a gentle or delicate cycle at 86°F | 30°C or below.
- Wash separately or use a laundry net.
- If the back fabric becomes wet with sweat and remains in contact with white or light-colored wool or silk garments for an extended period, color transfer may occur.
- Wash after use to remove sweat.
- Avoid bleach and fabric softener.
- Do not iron or dry clean.
- If necessary, wash before first use to remove any loose fuzz from the fabric.