Original Mountain Marathon (OMM) Core Tee, Color: Black

Lightweight insulation with minimal weight and volume

The Core Tee is made from the same PrimaLoft® ACTIVE fabric as the Core Vest and Core Hoodie, at 75g/m², making it an incredibly light and warm layer to wear on its own or as part of a cold-weather layering system.

The Core can be worn next to the skin or over a first layer for added warmth, and at just 87g, it packs down small enough to be carried without adding weight when not in use.

Its incredible breathability means that when worn alone, excess heat is quickly dissipated by air movement, while when covered with a shell or windproof layer, heat is trapped close to the skin, making it easy to control your perceived temperature at any activity level and in changeable weather conditions.

PrimaLoft® ACTIVE blurs the line between fill and fabric, loosely weaving PrimaLoft®'s industry-leading insulating fibers into a fine polyester mesh. The result is warmer, down-like performance when dry and insulation when wet, at less than half the weight of traditional fleece.