Merino wool is soft, breathable and temperature-regulating, making it perfect for any adventure. Shop our men's Merino wool base layers to experience the difference.

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Quick Buy
Men's Inversion Heavyweight Merino Wool Base Layer Crew Shirt $ 99
Men's Inversion Heavyweight Merino Wool Base Layer Crew Shirt - color variant: Rum Raisin
Men's Inversion Heavyweight Merino Wool Base Layer Crew Shirt - color variant: Sierra Cement-Black
Men's Inversion Heavyweight Merino Wool Base Layer Crew Shirt - color variant: Black
Men's Inversion Heavyweight Merino Wool Base Layer Crew Shirt - color variant: Charcoal Heather
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Quick Buy
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms $ 79
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms - color variant: Sierra Cement
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms - color variant: Rum Raisin
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms - color variant: Black
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms - color variant: Charcoal Heather
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Quick Buy
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms - 3/4 Length $ 75
Men's Inversion Heavyweight Merino Wool Base Layer Bottoms - 3/4 Length - color variant: Black
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt in Black
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt in black on a studio model
Quick Buy
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt $ 75
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt - color variant: Black
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt - color variant: Terra Cotta
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt - color variant: Charcoal Heather Black
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt - color variant: Cement Dye
Men's Aspect Midweight Merino Wool Base Layer Long Sleeve Shirt - color variant: Bark Camo-Black
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Quick Buy
Men's Aspect Midweight Quarter Zip Merino Wool Base Layer Shirt $ 79
Men's Aspect Midweight Quarter Zip Merino Wool Base Layer Shirt - color variant: Rum Raisin
Men's Aspect Midweight Quarter Zip Merino Wool Base Layer Shirt - color variant: Black
Men's Aspect Midweight Quarter Zip Merino Wool Base Layer Shirt - color variant: Old Growth
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Quick Buy
Men's Aspect Midweight Merino Wool Base Layer Balaclava Hood $ 89
Men's Aspect Midweight Merino Wool Base Layer Balaclava Hood - color variant: Rum Raisin-Terra Cotta
Men's Aspect Midweight Merino Wool Base Layer Balaclava Hood - color variant: Black
Men's Aspect Midweight Merino Wool Base Layer Balaclava Hood - color variant: Bark Camo
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Quick Buy
Men's Aspect Midweight Merino Wool Base Layer Bottoms $ 69
Men's Aspect Midweight Merino Wool Base Layer Bottoms - color variant: Cement Dye
Men's Aspect Midweight Merino Wool Base Layer Bottoms - color variant: Black
Men's Aspect Midweight Merino Wool Base Layer Bottoms - color variant: Rum Raisin
Men's Aspect Midweight Merino Wool Base Layer Bottoms - color variant: Charcoal Heather
Men's Aspect Midweight Merino Wool Base Layer Bottoms - color variant: Bark Camo
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Quick Buy
Men's Aspect Midweight Merino Wool Bottoms - 3/4 Length $ 59
Men's Aspect Midweight Merino Wool Bottoms - 3/4 Length - color variant: Black
Men's Aspect Midweight Merino Wool Bottoms - 3/4 Length - color variant: Old Growth
Men's Aspect Midweight Merino Wool Bottoms - 3/4 Length - color variant: Outerspace
Men's Aspect Midweight Merino Wool Bottoms - 3/4 Length - color variant: Charcoal Heather
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Quick Buy
Men's Convict Canyon Base Layer Joggers $ 99
Men's Convict Canyon Base Layer Joggers - color variant: Charcoal Heather
Men's Convict Canyon Base Layer Joggers - color variant: Old Growth
Men's Pursuit Ultralight Air Merino Hoodie in Vintage Indigo
Men's Pursuit Ultralight Air Merino Hoodie from the back
Quick Buy
Men's Pursuit Ultralight Air Merino Hoodie $ 108
Men's Pursuit Ultralight Air Merino Hoodie - color variant: Vintage Indigo/Black
Men's Pursuit Ultralight Air Merino Hoodie - color variant: Black
Men's Pursuit Ultralight Long Sleeve Merino Shirt in Smoke Blue
a man preparing for a run in a Pursuit Ultralight Merino Wool Long Sleeve Shirt with thumb holes
Quick Buy
Men's Pursuit Ultralight Long Sleeve Merino Shirt $ 78
Men's Pursuit Ultralight Long Sleeve Merino Shirt - color variant: Smoke Blue
Men's Pursuit Ultralight Long Sleeve Merino Shirt - color variant: Black
Tim Humphreys snowboards in the backcountry wearing Ridge Merino base layers

Built for Adventure

At Ridge Merino we create simple, everyday apparel with the mettle to weather expeditions, insulate adventures and soften the daily grind. Our base layers are no exception when it comes to technical apparel you can rely on. Whether you're climbing Mt. Whitney or skiing in-bounds, our Merino base layers will move with you.

a splitboarder skins on a groomed trail in the Mammoth Lakes area

Discover Merino Wool

Our men's Merino wool base layers are the perfect foundation for outdoor activities when the temps dip. Our Aspect Midweight Merino wool base layer is warm yet versatile, and our 100% Merino wool Inversion Heavyweight base layer keeps you warm in the coldest winter weather.

4 Length Base Layer Bottoms

Fabric You Need to Feel to Believe

Our warm 100% Merino wool Inversion base layers and versatile Aspect Base Layers are the perfect option for your ski and snowboard layers, no matter how or where you shred.

Men's Base Layer Reviews

Take it from our customers.

"Love this weight for skiing during the cold Yukon winters. The thumb holes are a nice addition. Simple and refined cut."

Benjamin L.

Inversion Heavyweight Base Layer Shirt

"These are the perfect length so they don't get bunched up in ski boots. Warm, wick well and comfy."

Paul J.

Aspect Midweight 3/4 Length Base Layer Bottom

"I have 6 of these shirts now, I love them. I'm 6'5" 205 and have long arms, it's hard to find clothes anywhere. I like an athletic fit and these are perfect."

Anthony F.

Aspect Midweight Base Layer Shirt

"These fit great and feel great next to skin. Wick very well even when sweating from exertion and keep me dry and warm. Very good product."

Eric H.

Inversion Heavyweight Base Layer Bottom

"Exactly as described, warm and breathable, well built and soft, stretchy with a good fit, bought it for running since my last wool quarter zip has worked so well and not gotten stinky."

Mark H.

Aspect Midweight 1/4 Zip Base Layer Shirt

"These are the warmest and toughest under layer I have ever owned. I will be buying more."

Nolan W.

Aspect Midweight Base Layer Shirt