Men's Base Layers

KLIM SIZE CHART KLIM Tactical Base Layers are specifically engineered for off-road and dual-sport riders looking for effective low-profile next-to...

KLIM SIZING CHART As the most versatile sock in the Klim lineup, the Klim sock performs perfectly in wide range of circumstances. In warmer condit...

KLIM SIZING CHART The Aggressor Vented Sock takes KLIM’s popular lightweight vented sock and incorporates an all-new technical and performance des...

Custom COOLMAX® moisture-wicking yarn blend Compression arch support Top of foot mesh panels for ventilation Top of foot mesh panels for ve...

Custom COOLMAX® moisture-wicking yarn blend Compression arch support Top of foot mesh panels for ventilation Top of foot mesh panels for ventil...

ALPINESTARS SIZING CHART Designed to be worn with the Alpinestars range of off-road boots and knee braces Single-layer compact construction fo...

KLIM SIZING CHART TETON MERINO WOOL BLENDED W/ ACRYLIC, POLYAMIDE NYLON, LYCRA FOR DURABILITY & COMFORT (30% MERINO WOOL, 30% ACRYLIC, 25% ...

KLIM SIZING CHART TETON MERINO WOOL BLENDED W/ ACRYLIC, POLYAMIDE NYLON, LYCRA FOR DURABILITY & COMFORT (36% MERINO WOOL, 31% ACRYLIC, 11% ...

KLIM SIZING CHART TETON MERINO WOOL BLENDED W/ ACRYLIC, POLYAMIDE NYLON, LYCRA, SOFTAIR POLYESTER FOR DURABILITY & COMFORT (36% MERINO WOOL...

KLIM SIZING CHART COOLMAX® POLYESTER, POLYAMIDE NYLON, LYCRA BLEND MADE OF EUROPEAN SOURCED YARNS REINFORCED TOE, HEEL, SOLE TERRY LOOP FOOTBE...

KLIM SIZING CHART The Aggressor eFire shirt adds powered heat elements to the most versatile and comfortable layering system available. Designed...

KLIM SIZING CHART The Echo Wool Fleece Jacket is a midweight performance fleece jacket with engineered stretch for added mobility. The full-zip ...

KLIM SIZING CHART The Glacier 1⁄4 Zip is a midweight stretch fleece with moisture-wicking technology and a stand-up collar for heat-trapping co...

KLIM SIZING CHART The Highline Jacket is a midweight stretch fleece with moisture-wicking performance and heat-trapping comfort. The full-zip fl...

KLIM SIZING CHART The insulated Override Vest is a technical mid layer with exceptional breathability and added warmth for chilly days. The per...

KLIM SIZING CHART Teton Merino Wool blended w/ acrylic, Polyamide Nylon, Lycra, SoftAir Polyester for durability & comfort (36% Merino Wool, ...

It’s always about to pop off when you’re wearing the 509 FZN Merino Party Suit. This one-piece base layer is made with warm, breathable, temperatur...

With the 509 FZN LVL1 Party Suit, there’ll never be a question of who’s ready for a good time. This one-piece base layer is made with a warm, hard-...

Kick it in style with the 509 Route 5 Sock. Any occasion, any season, they keep you comfortable with a long-lasting cotton/poly blend and added toe...

FXR SIZING CHART 180gsm brushed microfleece maximizes warmth Polyester / spandex blend offers premium comfort Synthetic yarns repel water and dri...