Big Game

Fit & Function

Whether you're glassing open bowls, tiptoeing through aspen groves, battling scree fields, or simply covering miles at a time, your big game pursuits run the gamut of moderate to high activity peppered with periods of pure motionlessness enduring the elements. This calls for durable weather protection, mobility, and breathability. Our Big Game system responds brilliantly to varying activity level and quickly changing weather conditions with technical fabrics and functional designs. We only choose the most advanced fabrics for final production of our products, and that’s why we employ GORE-TEX®, WINDSTOPPER® and PrimaLoft®. These high-tech materials enable hunters to stand up to all weather and connect with their environments in optimal comfort.


GORE ™ OPTIFADE™ Open Country


In 2009 we introduced GORE™ OPTIFADE™ Concealment’s Open Country pattern, optimized for backcountry hunters of elk, mule deer, bighorn sheep, mountain goats, and other ungulates. The Open Country pattern uses the larger neutral areas of the pattern (macro-pattern) that are more critical to concealment at greater engagement ranges.

GORE™ OPTIFADE™ Concealment incorporates the micro and macro patterns of the animal kingdom to help make hunters unrecognizable as predators, even when detected. Stalking predators, like tigers, have a macro-pattern of stripes that break up their body symmetry as they chase prey. One of the scientific principles behind the GORE™ OPTIFADE™ Open Country pattern is the emphasis of the larger neutral areas of the pattern (macro-pattern) which are more critical to concealment at the greater engagement ranges imperative to hunting in the backcountry.

Light & Fast System
Shop Now
All Mountain System
Shop Now
Extreme and Extended System
Shop Now
athlete athlete_second

Tom Foss

Big Game Athlete

Spanning over three decades, Athlete Tom Foss’ bowhunting addiction has taken him to the far reaches of globe. But whether it’s the mountains of Spain, Mexican Baja, Mackenzies of the NWT or deep in his backyard Alberta Rockies, Tom lives to bowhunt sheep, period.

Though Tom has been fortunate enough to harvest several record book rams with a bow, for him, it’s all about the next adventure. Tom draws motivation from the immense effort typically required of an archery sheep hunt. He’s equally fueled by his two sons, Cameron and Adam, also Sitka Athletes, who all share a common passion for the adventure of mountain hunting.

When there isn’t an open sheep season, Tom can be found with his four-legged companions, Kaiser and Kenzie, flinging arrows both left and right handed with traditional and compound equipment in his backyard archery range. He and his gearhead group of friends tinker, test and tweak every piece of equipment, bows, arrows and broadheads they put into use.

But the commitment to continually adopt the best performing gear isn’t restricted to archery equipment. Tom fully recognizes that volatile weather conditions in the Canadian backcountry leaves the success - and sometimes health - of a backpack hunter reliant solely on a proper layering system.

“The flexibility of my Sitka System is what allows me to survive and thrive by adapting to constantly changing weather. Back in the day, thick wool pants, heavy cotton shirts and rain gear that leaked like a sieve used to hold us back and put us in danger. But having lightweight, waterproof and durable gear as part of an entire layering system sets you up for a safer, more successful hunt.”




Streamlined to move like the wind while standing strong against it, our Mountain Jacket defies gravity and graupel alike. Imperceptibly light and minimal in bulk, it nearly disappears in your pack. Once deployed, the effects of its seam-taped WINDSTOPPER® construction are impossible to ignore.

Mountain Jacket

Wind Stopper

When a pulsing artery of the jet stream is ripping everything apart, the Timberline Jacket helps you keep it together. The bombproof seam-taped WINDSTOPPER® construction seals out driving wind, while reinforced shoulders and sleeves hold their own in rugged terrain, making this our most versatile jacket for the mid to late season.

Timberline Jacket

Wind Stopper

Light, warm, and tougher than gnarly scrub, the Mountain Pant specializes in moving fast in the mid and late seasons. For 2016, we rebuilt it from the ground up with a more precise fit and a newly-developed fabric, making rugged stalks quieter and more comfortable then ever.

Mountain Pant


A burly sheep hunting pant built for racking up vertical in mid to cold conditions, our Timberline Pant has long stood as the alpine hunter’s workhorse. The Timberline Pant is a highly technical 4-way stretch polyester spandex pant with double reinforced waterproof/breathable nylon ripstop knees and seat with articulated knee pads that are removable.

Timberline Pant




Find a Local Retailer