400G Merino Wool Half-Zip FilsonMackinaw our original Jac-Shirt is an

our original Jac-Shirt is an outdoor staple that provides warmth in all conditions like only 100% wool can

and still sets the standard for toughness with maximum load-carrying ability

the fluffy under-plumage found under geese’s protective exterior feathers

Equipped with Bridle Leather straps for hand carry

The highly-flexible TPU coating is resistant to ultraviolet light and chemicals

400G Merino Wool Half-Zip FilsonMackinaw our original Jac-Shirt is anOur heavyweight 400g Merino Long Sleeve Half Zip is soft and moisture wicking, making it an effective next to skin base layer in frigid conditions that can also double as a light sweater in cooler weather. Constructed from ultrafine heavyweight 400 gram wool, it naturally wicks away sweat and resists odors effectively. Features a short collar and a half zip front to effectively regulate your temperature.