ErectionTrunks

A penis part is distinctive to the top.(It shapes like the special curve.)

Cloth is steady and is micro fiber cloth with wetty feel with the very soft surface.

Cloth doesn't extend too much, so a penis feel tightly.
Please cover a glans much and put it on so that cloth in a point of a penis doesn't remain.

KH451　Micro fiber ErectionTrunks

MEN'S UNDERWEAR SIXLINES TOKYO JAPAN