Type III: With its extra flotation and deep-cut armholes this popular jacket will give you greater confidence safety and good range of arm motion. The B27 features include: two adjustable side-cinch straps a full-length zipper one zippered mesh pocket and a lash tab. Made with tough Cordura® fabric this jacket can handle the toughest of rapids. Add leg straps for extra safety. This PFD works well with a broad torso and does not fit as well on slender rib cages.