Department of Transport (Canada) approved. Adjustable fitting - chest size 91 -132cm. Quick release buckles. Segmented Hinge. Light and durable nylon outer shell, enhances confort. High quality heavy-duty buckles and strap system ensures a snug fit. Pe foam inner, provides safety and comfort. Oversized arm holes for enhances mobility and performance in water. Build-in drain hole to eliminated water build-up, ensuring a lightweight vest in and out of the water.