SeparatecMen's Bamboo Rayon Underwear Printing Breathable Dual Pouch Boxer Shorts 3 Pack

What size is a 32 inch waist?

Why is needed? Is this because you guys trim your southern region and this avoids sweaty stickyness or is this another step for menkind?

Are these from uk

I have bought these for the moisture wicking potential and order resistence of bamboo. Has any one used these as active underwear, specificly hiking.