- Box and Cox Underwear "Side Rooster" Plaid Boxer Briefs by Tumbler and Tipsy Hand Crafted by Michael Kuluva. These amazing briefs with our infamous "Side Rooster" is just luxury at its finest! These underwear are to fit all sizes (one size fits all) and are produced in a limited edition. Each piece of Box and Cox Underwear is made by hand which allows us to be exclusive in making each of these garments one of a kind.