






Description
Ships in 1-2 days | Based in Portland, OR | Est. 2020
Formerly known as the "Lark Hoodie"
Ultralight half-zip hoodie. Designed to be your go-to performance midlayer, providing maximum warmth and breathability in an incredibly lightweight package. Whether it's changing weather conditions or high-intensity activities where you need insulation but don't want to overheat, this hoodie offers the user complete control of temperature regulation and the ability to stay comfortable.
Polartec® Alpha™ Direct fleece fabric has an incredible warmth-to-weight ratio, providing active insulation and helping regulate body warmth for optimized comfort during stop-start activities. Its lightweight lofted fibers, mesh knit, and hydrophobic qualities make Alpha™ warmth-to-weight dependable, highly breathable, and fast-drying.
Features:
- Ultralight (85g/m2)
- High warmth-to-weight ratio
- Resists moisture and is fast-drying
- Elastic cuffs and balaclava hood with anatomical shaping for warmth
- Gusseted underarm for increased mobility
- Articulated sleeves
- Made in USA from domestic fabric, sewn by workers earning a fair wage in a safe environment
- Includes Senchi bag for washing
- Oeko-Tex® Certified
- Bluesign® Certified
Fit: Unisex fit. Midlayer - M fits like a Men’s medium. Size up for a relaxed fit.
Due to the nature of Alpha™ fabric, it stretches horizontally, it may contract vertically.
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Sizing: View Senchi Designs sizing guide
Weight: 4.6oz | 130g (medium)
*Weight may vary due to fabric variation
Materials: Polartec® Alpha™ Direct 90: 78% recycled polyester, 22% polyester
Made in the USA
***Discounts are not available on Senchi Designs products.
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Care: Extend the lifetime of your Senchi by washing it infrequently, and always storing and washing it inside of the included Senchi Bag. Machine wash cold, delicate cycle, tumble dry low, or lay flat to dry. Do not bleach, dry-clean, iron, use fabric softener, or machine-wash with agitator.
- Reviews
- Questions

Warm but not a sweat maker
I'm working on my husband to get one. It is incredibly light, warm, and breathable. No "plastic bag" effect, but NOT wind resistant as advertised.

Warmer than I thought it could be
I just took my new Alpha 90 hoodie on a 7 day trip through the Sierra and it performed far better than expected. I never needed more than this fleece and a rain shell if it was windy. The weight to warmth ratio of this fleece is crazy. It seems delicate but I'm not overly careful with my gear and so far it's holding up. I'm buying one for my husband before our next trip.

Super light and super warm
A perfect active layer. Warm when you are around camp breathes incredibly well when moving. Great for backpacking and overall mid layer. I wouldn’t climb in it though without a shell. Make sure that you keep it away from Velcro.

well-made, innovative piece of gear
The Senchi alpha 90 hoodie is well-made and a really interesting piece of gear. It is incredibly lightweight, but offers incredible warmth-to-weight (with a rain/wind layer) and breathability when used on its own. The sizing is a little on the slim/snug side, but the fabric has some stretchiness (less than most regular fleece). The fabric itself is pretty fragile, not ideal for bushwacking, but it's fine for basic trail use (I keep it stored at home in the fabric pouch it comes in, also to be used when washing. I'm babying it by keeping it from catching on random velcro or anything that could catch it). I purchased it in spring, so I've used it mainly emphasizing breathable warmth, but looking forward to using it in cooler months, replacing carrying a puffy layer by pairing the alpha fleece with a rain jacket.
Found my perfect midlayer.
i finally found my perfect mid-layer. i had tried various fleece and wool top, but didn't like them. i found the alpha 90 warm, lightweight, and easy to wear while being active. it meets my needs.