This uniquely designed vest has an ultra-thin lower back section to accommodate boats with high seat backs. Try it on and you’ll wonder how you got along without it. Features Include: 210 denier high tenacity nylon outer shell for extra resistance to UV degradation and longer life Soft, breathable and quick-drying 200 denier nylon oxford inside and out 4 side torso adjustments for a reduced ride-up, and snug, comfortable fit GlideFit™ Cartilage, our unique, patented, between the foam system allows the foam panels to glide on each other and wrap the torso for a better, more comfortable fit Easy to wear front-zip style with our beefy non-corroding YKK® Vislon #10 zipper Self-adjusting stretch neoprene shoulders for a streamlined fit Secure zippered mesh pocket with internal key-ring attachment point Baja Back™ with ultra-thin lower back foam to accomadate seat backs and seat rests for greater comfort when seated.