Size Guide for Men's Underwear

Short answer: Find your underwear size by measuring around your waist where the waistband will sit, and comparing that measurement with the brand's chart. An underwear size guide is more reliable than guessing from your trouser size, because brands cut differently.

How to Use an Underwear Size Guide

Take a tape measure and measure your waist without pulling it tight. Then look the measurement up in the chart for the brand you want to buy, for example the size guide for JBS of Denmark men or the size guide for Bamboo Basics men. Brands use the same letters, but the centimetres behind them vary.

How Underwear Should Fit

Underwear in bamboo viscose should sit close to the body without squeezing. The waistband must not leave deep marks, and the legs should stay in place when you walk. If the legs ride up, the style or the size is wrong. Read more in the guide to the right fit in bamboo underwear.

If You Are Between Two Sizes

Bamboo viscose is stretchy and shapes itself to the body, so many men can go down to the smaller of two possible sizes in tights and boxer shorts. See the full range of bamboo underwear for men, and read the general size guide for bamboo clothing if you want to go deeper into the subject.

Frequently Asked Questions

How do I measure myself for underwear?

Measure around your waist where the waistband will sit, without pulling the tape measure tight. Compare the measurement with the size chart for the specific brand.

Should underwear fit tightly?

It should sit close without squeezing. The waistband must not leave deep marks, and the legs should stay in place all day.

Are sizes the same across brands?

No. A medium at one brand can match a large at another. Always check the brand's own chart before you order.