Men's Coefficient LT Crew Kingfisher 1
Men's Coefficient LT Crew Kingfisher 2
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Men's Coefficient LT Crew




The Coefficient LT Crew is the perfect baselayer for high output activities, from alpine approaches, backcountry tours or mountain runs. View Details

Color: Kingfisher

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Size Options

Holiday Shipping Cutoffs

Get your order by Dec. 25 with the shipping cutoffs below.

Free Economy

Dec. 11th

Paid Ground

Dec. 14th

2 Day Service

Dec. 19th

Next Day Service

Dec. 20th


Dec. 8th

  • Free economy shipping for orders over $50+

The perfect baselayer for high output activities, from alpine approaches, backcountry tours or mountain runs that require added protection, the Coefficient LT Crew is a stretchier, lighter version of our popular Coefficient fleece. Polartec® Power Grid® fleece with a gridded interior increases wicking performance and adds breathability.

Product Features

  • Primary Fabric is Bluesign® approved
  • Elastic thumb-loops for ease of layering and over-hand protection
  • Gusseted underarm for mobility
  • Flatlock stitching
  • Center Back measurement: 27 1/4"
  • Fit: Slim
  • 205 g



Patented grid construction knit strengthens performance efficiency by increasing warmth and breathability, while also reducing fabric mass. These geometric patterns improve compressibility, wicking, and add technical style. By reinventing thermal warmth possibilities, Power Grid™ is a minimalist design that maximizes fabric performance.

Practical Lifetime Warranty

We trust what we make because we use what we make. All Black Diamond softgoods are warranted against defects in materials and construction for the practical lifetime of the product.


Protecting the places we love is as important to us as building the gear to take you there. Utilizing sustainabily produced raw materials is a cornerstone to our approach and foundational to this commitment. Styles carrying the ECO label status are made of one or more of Black Diamond's targeted sustainablity attributes.

Bluesign Approved Material

Materials approved by Bluesign have undergone strict prodcution criteria from the raw materials to the end product to ensure they follw standards that are responsuible and sustainable with regard to people, the enviornment and resources. With Bluesignapproved materials, users can be assured that their products were manufactured with responsibly use of resources and the lowerst possble impact on people and the enviornment.

Display Weight
Size Range
205 gPolartec Powergrid polyester stretch grid back fleece (90% Polyester, 10% Elastane, 119gsm)S-XL