Underwear under light trousers

Short answer: Choose a skin toned, seamless style. White underwear shows clearly through light trousers, and dark shows even more.

Colour first

Under light trousers the same rule applies as under light tops: a tone close to the skin disappears, while white and black both show. That applies to briefs and to men's underwear alike. See bamboo briefs for women.

The edge is the second problem

A thick elastic edge shows as a line through thin trouser fabric. A seamless style with a bonded or flat edge solves it. See bamboo underwear for women.

The cut

Choose a style whose edge does not land on the widest part of the hip, where the trousers pull most. Either higher or lower is better. See bamboo underwear briefs for men.

Frequently asked questions

Is seamless always better

Under tight light trousers yes. Under loose trousers it matters less.

What about patterned underwear

Patterns show most clearly of all through light fabric. Choose plain.

Do thicker trousers help

Yes, that is the easiest solution if you do not want to change your underwear.