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Mens Baselayers PLP (L3)

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Designed to be more than just another base layer, the Core Lightweight Hoodie is the foundation that all our SITKA systems are built from.

Designed to be more than just another base layer, the Core Lightweight Hoodie is the foundation that all our SITKA systems are built from. High-performance polyester construction moves moisture through periods of high aerobic activity while drying quickly during low periods spent sitting, glassing or calling.

Core Lightweight Hoodie

The CORE Midweight Zip-T features quick-drying comfort stretch mid-weight fleece and a high-zippered neck to keep your active body temperature regulated as the thermometer rises or plummets.

The CORE Midweight Zip-T features quick-drying comfort stretch mid-weight fleece and a high-zippered neck to keep your active body temperature regulated as the thermometer rises or plummets. Permanent Polygiene® Odor Control Technology and a low-profile flatlock seam construction make this a versatile next-to-skin layer for a wide range of conditions and activity levels.

Core Midweight Zip-T

Early season pursuits call for the Core Merino 120 Long-Sleeve Crew.

Early season pursuits call for the Core Merino 120 Long-Sleeve Crew. Our lightest merino baselayer, it features an ultralight merino wool blend that regulates temperature to help you stay comfortable through changing conditions and activity levels, and it naturally resists odor to suppress your scent. Plus, ArmorSpun merino wool gives it the extra durability needed to last for seasons to come.

Core Merino 120 LS Crew

With a gusseted no-bunch crotch and low-profile elastic waistband, the CORE Lightweight Bottom provides just enough warmth for when temps dip and dial up animal activity.

With a gusseted no-bunch crotch and low-profile elastic waistband, the CORE Lightweight Bottom provides just enough warmth for when temps dip and dial up animal activity. Featuring permanent Polygiene® Odor Control technology to neutralize odor by stopping the growth of odor-causing bacteria and fungi. The CORE Lightweight Series is the next-to-skin layering foundation for SITKA Systems, actively moving moisture away from the skin while keeping the hunter dry and comfortable.

Core Lightweight Bottom

The CORE Midweight Bottom offers the perfect weight and quick-drying fleece insulation for optimal warmth without overheating the hunter.

The CORE Midweight Bottom offers the perfect weight and quick-drying fleece insulation for optimal warmth without overheating the hunter. This bottom is the base of a foundation as the conditions cool from mid-season to beyond.

Core Midweight Bottom

Count on the Core Merino 120 Hoodie to take you from warm early season conditions through active hunts in cool weather.

Count on the Core Merino 120 Hoodie to take you from warm early season conditions through active hunts in cool weather. Featuring an ultralight merino wool blend that regulates temperature to help you stay comfortable through changing conditions, and it also naturally resists odor to suppress your scent. Made with ArmorSpun merino wool to give the extra durability needed to last for seasons to come.

Core Merino 120 Hoodie

Layer the Core Merino 120 Bottom under your pants for superior odor suppression and comfort on warm-weather hunts.

Layer the Core Merino 120 Bottom under your pants for superior odor suppression and comfort on warm-weather hunts. The ultralight merino wool blend naturally resists odor to help you stay undetected and regulates temperature through changing conditions and activity levels. It’s also reinforced with ArmorSpun merino wool so it’s durable enough to last for seasons to come.

Core Merino 120 Bottom

When the forecast is frigid, pack the heavyweight warmth of the Core Merino 330 Hoodie.

When the forecast is frigid, pack the heavyweight warmth of the Core Merino 330 Hoodie. It features our warmest-weight merino wool to keep you warm in the coldest conditions. Temperature-regulating merino wool has an exceptional warmth-to-weight ratio to keep you warmer with less bulk, and the contoured hood with a built-in facemask offers additional comfort and concealment. Merino wool also resists odor to help you stay undetected, and our ArmorSpun merino wool is reinforced for improved durability. And to make sure excess moisture doesn’t leave you wet and cold, we added a synthetic interior that quickly moves sweat off your skin and through your system to keep you dry and warm.

Core Merino 330 Hoodie

Built for frigid late-season sits, the heavyweight Core Merino 330 Half-Zip features our warmest-weight merino wool to keep you warm in the coldest conditions.

Built for frigid late-season sits, the heavyweight Core Merino 330 Half-Zip features our warmest-weight merino wool to keep you warm in the coldest conditions. Merino wool has an exceptional warmth-to-weight ratio to keep you warmer with less bulk and it regulates temperature through stop-and-go pursuits. Merino wool also resists odor to help minimize your scent, and our ArmorSpun merino wool outlasts traditional merino wool. And to prevent sweat from leaving you wet and cold, we added a synthetic interior that rapidly moves moisture away from your skin and through your system to keep you dry and warm.

Core Merino 330 Half-Zip

When the fall chill starts to settle in, it’s time to reach for the Core Merino 220 Half-Zip.

When the fall chill starts to settle in, it’s time to reach for the Core Merino 220 Half-Zip. Featuring a midweight, double-layer merino wool blend, it regulates temperature to keep you comfortable from mild early-fall afternoons through late-season cold snaps. Merino wool is also naturally odor-resistant to help maintain stealth, and our ArmorSpun merino wool is reinforced with nylon to make sure it stands the test of time.

Core Merino 220 Half-Zip

Heading into the backcountry late in the season calls for the heavyweight warmth of the Core Merino 330 Zip-Off Bottom.

Heading into the backcountry late in the season calls for the heavyweight warmth of the Core Merino 330 Zip-Off Bottom. Our heaviest-weight merino wool blend keeps you warm on the coldest hunts of the year and regulates temperature to maintain comfort when you’re on the move. Merino wool is also naturally odor-resistant to minimize smell on extended trips, and our ArmorSpun merino wool is reinforced for superior durability. We then added a recycled synthetic lining quickly moves sweat away from your skin to keep you dry and warm. And when you need to shed a layer, side zips let you remove this bottom without taking your boots off, making this baselayer ideal for long expeditions and shifting weather conditions.

Core Merino 330 Zip-Off Bottom

A versatile heavyweight fleece perfect for layering.

The Grinder Half-Zip offers a breathable yet insulated layer to wear throughout waterfowl season. Made from a blend between polyester and elastane, the SITKA Grinder Half-Zip offers plenty of stretch for a greater range of motion, while the waterproof and windproof technology keeps you dry and warm. The Polygeine® Odor Control Technology treatment neutralizes odor from sweat to keep you scent-free and undetected. Plus, the half-zip closure provides versatile ventilation and breathability when temperatures start to warm up.

Grinder Zip-T

This hoodie works as an extension of your base layer for hunts in cold weather or worn as outerwear for active mid-season days.

The Heavyweight Hoodie is versatility at its best. This hoodie works as an extension of your base layer for hunts in cold weather or worn as outerwear for active mid-season days. The channeled comfort-stretch fleece insulation retains core warmth while allowing moisture to rapidly move through the system.

Heavyweight Hoodie

Prepare yourself for long, frozen sits with the Core Merino 330 Bottom.

Prepare yourself for long, frozen sits with the Core Merino 330 Bottom. Heavyweight merino wool brings itch-free warmth for the coldest hunts, while a recycled synthetic lining moves any moisture away from your skin to keep you dry and warm. Merino wool also brings more warmth with less bulk and is naturally odor-resistant to help you avoid being detected. Our ArmorSpun merino is also stronger than traditional merino wool to ensure it’s durable enough season after season.

Core Merino 330 Bottom

Layer the midweight Core Merino 220 Bottom when the fall frost arrives.

Layer the midweight Core Merino 220 Bottom when the fall frost arrives. Merino wool has a high warmth-to-weight ratio to keep you warm without a ton of bulk, and it regulates temperature well so you don’t overheat. Merino wool is also naturally odor-resistant to help you stay undetected, and our ArmorSpun merino wool is reinforced with nylon to make it last.

Core Merino 220 Bottom

The Heavyweight Bottom is perfect for cold weather days spent in a layout blind, stand or glassing in the backcountry.

The Heavyweight Bottom is a foundational next-to-skin baselayer that keeps the lower limbs warm during long periods of frigid inactivity while wicking moisture when on the move. With a comfort stretch fleece for warmth and channeled construction for added breathability and moisture management, the Heavyweight Bottom is perfect for cold weather days spent in a layout blind, stand or glassing in the backcountry.

Heavyweight Bottom

The short-sleeve version of our lightest merino baselayer features an ultralight merino wool blend that regulates temperature to help you stay comfortable.

The short-sleeve version of our lightest merino baselayer features an ultralight merino wool blend that regulates temperature to help you stay comfortable through changing conditions and activity levels, and it naturally resists odor to suppress your scent. We designed this short-sleeve crew with ArmorSpun merino wool to give it the extra durability needed to last.

Core Merino 120 SS Crew

With short sleeves and a low-profile crewneck, the CORE Lightweight Crew SS is the next-to-skin layering foundation for all seasons.

With short sleeves and a low-profile crewneck, the CORE Lightweight Crew SS is the next-to-skin layering foundation for all seasons. Featuring permanent Polygiene® Odor Control Technology to neutralize odor by stopping the growth of bacteria and fungi. The CORE Lightweight Series works hard to keep odor at bay while actively moving moisture away from the skin.

Core Lightweight Crew SS

Truly complete your system with the Core Merino 220 Boxer.

Truly complete your system with the Core Merino 220 Boxer. Soft, midweight merino wool offers itch-free comfort you’ll want to wear whether you’re in the field or not, and it’s naturally odor-resistant to minimize smell during extended trips into the backcountry. Our ArmorSpun merino wool is also reinforced with nylon to ensure this boxer stays in your kit for a long time. Due to sanitary precautions, underwear and boxers cannot be returned.

Men's Hunting Baselayers