Boxer Modus Vivendi Multi C-Through 05821. The Multi c-through line is proud of its avant-garde design, combining elements of comfort and sensual look. The Modus Vivendi C-Through boxer has a mesh style on the pocket and leaves the back completely uncovered. This underwear is super comfortable and sexy, Made from high quality fabric, this boxer is great for sports activities and sexy intimate moments. 95% Cotton, 5% Elastane.