Women's Merino Blend Sweatshirt - Natural Grey Heather

$45 ~~$90~~ In stock

An elevated take on the classic sweatshirt, we use an ultra-soft, Merino wool blend to create the ideal midweight layering piece perfect for all-day, everyday wear.

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Why we made this

We constructed our Merino Blend sweats with an ultra-soft blend of merino wool, tree, organic cotton, and recycled polyester fibers to create the ideal mid-weight layering piece. Perfect for all-season wear.

Thoughtfully designed

Super Soft Natural & Recycled Fabric - we use premium merino wool, tree, organic cotton, and recycled polyester fibers to make super soft, mid-weight sweats
Versatile Weight - our 330gsm sweats fabric is what we consider the ideal midweight layer. For reference, our tees are 200gsm and the heaviest sweats you’ll find on the market are in the 450-500gsm range
Subtle Embroidered Branding - tonal embroidered script is the only branding you’ll find on Allbirds sweats—a refreshing change from others that look more like billboards than garments

Best for

Everyday Lounging Cool Weather Weekends

Weight: 17.1oz (size M)
Fabric weight: 330 gsm
Country of Origin: Peru

Materials & Sustainability

Material Composition

12% Merino Wool, 7% Tree-derived TENCEL™ Lyocell, 72% Organic Cotton, 9% Recycled Polyester

Care instructions

Machine wash on cold using mild detergent and then tumble dry low. Or, to minimize your carbon footprint & maximize your product's lifetime, air dry. Do not iron, bleach, or dry clean.

Why we made this

Best for

Everyday Lounging Cool Weather Weekends

Weight: 17.1oz (size M)
Fabric weight: 330 gsm
Country of Origin: Peru

Thoughtfully designed

Super Soft Natural & Recycled Fabric - we use premium merino wool, tree, organic cotton, and recycled polyester fibers to make super soft, mid-weight sweats
Versatile Weight - our 330gsm sweats fabric is what we consider the ideal midweight layer. For reference, our tees are 200gsm and the heaviest sweats you’ll find on the market are in the 450-500gsm range
Subtle Embroidered Branding - tonal embroidered script is the only branding you’ll find on Allbirds sweats—a refreshing change from others that look more like billboards than garments

Customer Reviews (4.9 / 5 · 7 reviews)

Joshua Y. ★★★★★ Aug 13, 2026

Wore this on a chilly morning walk and forgot I had it on, the merino blend really does feel that soft against your skin. It’s the perfect weight for layering without any bulk, easily my new go-to for the whole day.

Ryan ★★★★★ Aug 12, 2026

The Merino blend makes this the perfect in-between layer—warm enough for a chilly morning but light enough to wear indoors without overheating. I've basically lived in it since it arrived, and the natural grey goes with everything.

Ava ★★★★★ Aug 11, 2026

I wasn't sure if a sweatshirt could feel this refined, but the merino wool blend makes it insanely comfortable without any itch. The natural grey heather looks even better in person, and it's the perfect weight for throwing on over a tee when the office AC is blasting.