Super deals: At least 50% off

Baselayer Bottoms

Full-length bottoms, cropped legs or boxers: choose by activity and boot height. Waistband and seams must not create pressure.

Guide

Baselayer Bottoms

With base-layer bottoms, waistband, leg hem and space beneath your trousers matter. High footwear also needs a smooth transition to socks.

Key points

For high activity, prioritise moisture transfer over maximum warmth.
Compare merino and synthetics by use and care.
The first layer should sit close without restricting movement.
Choose leg length deliberately when wearing high boots.

Which option suits your use?

Use	Choose	Why
High activity	ChooseLight sports underwear	WhyCompare thigh seams and the waistband beneath your sports trousers.
Cold days	ChooseFull-length bottoms	WhyHeavier fabric can add warmth; at higher effort the layers must still move moisture.
High boot shaft	ChooseCropped leg	WhyThe hem should finish above the shaft rather than forming a bulky fold inside it.
Short first layer	ChooseBoxers or short underwear	WhyCheck leg hems and waistband for pressure beneath the next layer.

Types compared

Short underwear
Boxer-length legs end at the thigh. They suit hard exercise when outer bottoms already provide enough coverage.
- Advantage: No additional layer around the lower leg
- Drawback: Legs receive little insulation under airy trousers
Example: Craft Pro Active Extreme X Wind Boxer Men ›
Full-length bottoms
Full-length wool knit reaches the ankle. It suits cool sessions when you want continuous leg coverage.
- Advantage: Continuous coverage beneath outer trousers
- Drawback: The hem can add bulk inside high footwear
Example: Odlo Merino 260 Base Layer Bottoms ›
Cropped leg
A cropped hem ends above the lower leg. It suits high ski boots worn with separately fitted socks.
- Advantage: Fewer fabric folds inside a close-fitting boot cuff
- Drawback: Low footwear can leave an uncovered gap
Example: Salewa Cristallo Warm AMR M 3/4TIGHT ›

What to look for when buying

Question	In brief	Why
How intense?	In briefMatch weight to activity	WhyBody heat from hard effort needs a different first layer from long stops. Consider the outer layers too.
Which fabric?	In briefMerino, synthetic or blend	WhyMerino can limit odour; synthetics and blends can be constructed for rapid moisture transfer.
Which fit?	In briefClose without pressure	WhyFolds and bulky seams can become uncomfortable under other layers. Check raised arms and deep bends.
Which length?	In briefMatch to footwear	WhyA hem inside a close boot shaft can create pressure. Cropped legs finish above the shaft.

Frequently asked questions

How do I check the fit?

Try the base layer under your next clothing layer. Raise your arms and squat: back and waist should stay covered without pressure from seams. Start with the maker’s size chart.

What does the maker’s fabric-weight figure mean?

Odlo distinguishes merino fabric weights of 160, 200 and 260 g/m². These are not universal temperature ratings.

How do I compare different designs?

Compare pieces intended for the same activity. Fabric weight, fibre content, cut and weather protection describe different properties. A higher figure is not automatically the better choice.

How do I care for it?

Follow the particular garment’s care label. Wool and blends may need different programmes from pure synthetics. Avoid unapproved treatments and dry as directed.