Part of the Viaje Summer release schedule, the C4 follows the Viaje's explosive motif. This heavily box-pressed robusto-type sized smoke, capped on both ends, imitates the shape and packaging of a plastic explosive. The blend has remained the same throughout the years, but the construction has undertaken some minor tweaks. In order to release some of the moisture from the double capped cigar, a small hole has been purposely placed in the "foot." When you're in experimental territory like this, sometimes minor modifications need to be made for the good of the cigar, and the attention to detail shows. Full-bodied and enjoyable, the C4 is a great pickup if you're a fan of Viaje's Skull & Bones series.