Size Guide

Sizes for Bum-Chums Pants are sometime more of an art than a science and we know that the way underwear fits is a really personal choice, with some wanting more snug and some liking more room.

Before picking your size you should know that Bum-Chums uses fabrics with quite a bit of stretch and a high lycra or elastane content compared to many brands of men's underwear.


 Size Short To fit Waist (Inches) To fit Waist (CM)
Extra Small XS 26-30 66-76
Small S 30-32 76-81
Medium M 32-34 81-86
Large L 34-36 86-91
Extra Large XL 36-38 91-96
2X Extra Large 2XL 38-40 96-101
3X Extra Large 3XL 40-42 101-106


Take me for example... I'm Craig, I design and make the pants... I wear size medium and my waist is about 33 inches. In most brands I fit a 32" waist easily in things like jeans. So it should give an example of how our pants may fit you.

As you can see below, our underwear is designed to sit on the hip-line rather than the more traditional waistline as other brands of men's underwear. This makes our designs of men's pants more of a low-rise underwear design, which we thing is pretty hot.