Does the brand matter when the fabric is the same

Short answer: The brand matters for fit, consistent sizing and claims handling. It matters less for the fabric itself, which often comes from the same factories.

What the brand actually controls

The cut, the sizes and the quality control. A brand that uses the same base pattern year after year means an L is always an L. That is worth something when you buy again.

What the brand does not control

Bamboo viscose knitted in the same factory is the same viscose whatever logo is sewn in. See bamboo underwear for men.

When it is worth paying for

When you have found a cut that suits you. Then the name is a shortcut to getting it right again without trying it on. See JBS and Bamboo Basics.

Frequently asked questions

How do you find your brand

Buy one piece, wear it for a month and note whether the size held.

Do brands change their patterns

It happens, typically every couple of years. Measure a new garment against an old one.

Are unknown brands worse

Not necessarily. But you have less to go on when choosing a size.