Warm, breathable and quick to dry, the Coefficient Fleece is everything you want in a lightweight alpine midlayer. The Quarter-length zipper lets you regulate temperature on the go.
We trust what we make because we use what we make. All Black Diamond soft goods are warrantied against defects in materials and construction for the practical lifetime of the product.
You can’t tell the history of climbing and mountain sports without telling the history of Black Diamond. Born from the ashes of Chouinard Equipment in 1989, Black Diamond thrives today as a leading innovator in climbing, skiing, and mountain equipment.
Overall rating: 5.0 / 5 from 7 reviews.
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"Great bit of kit, true to size and top quality."
"Suprisingly warm despite its nimble and light feel, great for high sweating activities. The midlayer I've been looking for."
"Produits de qualité comme toujours."
"I’ve been using the Men’s Coefficient LT Quarter Zip Pullover as a midlayer for a while now, and I’m really impressed. The fabric is both light and pleasantly soft, making it ideal for layering without adding bulk. The athletic cut fits me perfectly—I’m 188 cm tall, weigh 73 kg, and the size M is just right. Overall, I’m extremely satisfied with this pullover. It’s become a go-to piece for me, combining style and functionality effortlessly."
"Excellent"
"Great shirt !"
"Perfect for climbing and hiking!"
| Size | Chest | Hip | Arm Length |
|---|---|---|---|
| XS | 34 - 35.5 in 86.5 - 90 cm | 33.5 - 35 in 85 - 89 cm | 33.5 in 85 cm |
| S | 36 - 38 in 91 - 96.5 cm | 35.5 - 37.5 in 90 - 95.5 cm | 33.5 in 85 cm |
| M | 38.5 - 41 in 97.5 - 104 cm | 38 - 40.5 in 96.5 - 103 cm | 34 in 86.5 cm |
| L | 41.5 - 44.5 in 105 - 113 cm | 41 - 44 in 104 - 112 cm | 34 in 86.5 cm |
| XL | 45 - 48.5 in 114 - 123 cm | 44.5 - 48 in 113 - 122 cm | 34.5 in 87.5 cm |
Designed to fit slim to the body for an athletic, low-profile fit without restricting mobility and accommodating base layers or light midlayers.
A classic universal fit with comfortable ease. May feature slight body shaping, but predominantly straighter fit that will accommodate midlayers more comfortably.
Generous through the body for a casual loose-to-oversized fit without shaping. Designed for comfort, it accommodates heavier mid-layers.
Measure around the chest/bust just under the arms and across the shoulder blades.
Measure from the center back of the neck, across the shoulder, and down the arm to the wrist.
Measure around the widest point of the hips.
Measure around the narrowest part of the waist.
