400g Merino Wool Bottoms - Black 40-or-more-discount The 100g PrimaLoft Gold used

The 100g PrimaLoft Gold used in this vest has been tested to retain 98% of its warmth in soaking conditions

or layered under a vest when the temperature drops

Patterned after our original iconic Jac-Shirt that's been a favorite since the 1970s

Your new go-to favorite for warm weather

with front and rear patch pockets

400g Merino Wool Bottoms - Black 40-or-more-discount The 100g PrimaLoft Gold usedThick moisture wicking merino wool makes our expedition weight 400g Merino Bottoms ideal as a next to skin base layer in the coldest weather, or underneath waders in icy rivers. The wool is from merino sheep, prized for their ultrafine fibers that are soft against the skin, moisture wicking and odor resistant. Wool has been nature's top defense against cold, wet weather for centuries due to its ability to insulated even when wet. Front fly and elastic