Should a base layer be tight?

Yes — a close fit wicks moisture and traps warmth better.

How do I pick base layer size?

By chest measurement, rounding down if between sizes.

Home › Base layer › Chest 86 to 94 cm (about 34 to 37 in)

Base layer size

What size base layer for Chest 86 to 94 cm (about 34 to 37 in)?

Recommended size

S base layer

If your chest is Chest 86 to 94 cm (about 34 to 37 in), go with S base layer. A base layer should fit close to the skin to wick sweat. Pick by chest, and lean to the smaller size for a true performance fit.

Size finder — enter your chest (cm)

Enter your chest to see your recommended size.

Full base layer size chart

Your chest	Recommended size
Chest under 86 cm (about 34 in)	XS base layer
Chest 86 to 94 cm (about 34 to 37 in)	S base layer
Chest 94 to 102 cm (about 37 to 40 in)	M base layer
Chest 102 to 110 cm (about 40 to 43 in)	L base layer
Chest 110 cm and up (about 43 in and up)	XL base layer

How to measure

Measure your chest at the fullest point.
For base layers, a snug fit beats a loose one.
If between sizes, choose the smaller for better wicking.

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What changes your size

Compression fit wanted	Size down one range.
Relaxed everyday fit	Choose the larger size.
Tall torso	Look for a Tall cut to keep the hem tucked.

FAQ

What size base layer for Chest 86 to 94 cm (about 34 to 37 in)?: If your chest is Chest 86 to 94 cm (about 34 to 37 in), the recommended base layer size is S base layer.
Should a base layer be tight?: Yes — a close fit wicks moisture and traps warmth better.
How do I pick base layer size?: By chest measurement, rounding down if between sizes.