Mavic Ultimate Merino Bibshort Large BlackThe Mavic Ultimate Merino Bib Short. The bib short is a perfect all-season item, keeping heat locked in during fall and winter, and performing quite similar to the Cosmic Ultimate SL in the summer. Made of a durable, water-repellant merino wool fabric. Provides stretch when needed during rides. Fabric is also highly wind resistant as well as lightweight.193128101817