Base Layers & Underwear
About Base Layers & Underwear
A base layer sits against the skin and moves sweat away from the body, which keeps you warmer in the cold and cooler in heat. Riders wear them under jackets, pants and suits, and the layer matters most on long days, when damp skin makes you uncomfortable fast.
The main choice is weight. Lightweight tops and pants suit mild weather and warm climates, and heavyweight pieces add insulation for cold mornings and snow. The listings here include tops, pants, three-quarter zip shirts, vented shorts and moto boxers, including women's versions. Fit should be close without being tight, so the fabric stays against the skin and wicks sweat. Pick synthetic or wool fabrics rather than cotton, which holds moisture. Seams should lie flat, because a seam that rubs under armor gets annoying quickly. Base layers go under Motorcycle Jackets, Motorcycle Pants & Chaps and Racing & Riding Suits, and warm feet start with Socks.
Brands here include EVS and Fly Racing. For the weather side of the outfit, see Rain Wear and Snowmobile Jackets & Bibs. All sit within Motorcycle & Powersports Gear.
FAQs on riding base layers
What should I wear under my motorcycle gear?
A moisture-wicking base layer, sized snugly, works best, with underwear or shorts made for riding if you will be on the bike for hours. Avoid cotton, which holds sweat. Add a mid layer such as fleece when it is cold.
Should I choose a lightweight or a heavyweight base layer?
Lightweight suits mild or warm weather and high-effort riding, such as off-road. Heavyweight adds insulation for cold mornings and snow. If the temperature changes during the day, a lightweight base layer with an added mid layer is easier to adjust.
Why avoid cotton as a base layer?
Cotton soaks up sweat and stays wet, and wet fabric on the skin feels cold in wind. Synthetic and wool base layers move moisture away from the skin and dry faster, so they are the usual choice for riding.
How tight should a base layer fit?
Close to the body, so it can wick sweat from the skin, but not so tight that it restricts movement or presses under armor. Check the size chart and try it with your jacket and pants over the top, sitting in a riding position.
