The stabilizing jacket remains the BCD style choice of experienced divers because of its dynamic control system. Stabilizing jackets reject the idea of air bladders within BCDs; instead, they use internal air passages that basically embrace the diver and allow air to remain dynamic inside the jacket. This air flows freely to the jacket's highest point, which allows the diver to basically rotate around a bubble. This adds stability and creates ease of motion for the diver. As divers around the world will attest, this design's attributes have made the stabilizing jacket the most widely-used BCD of all time. The new Classic combines the best features past and present. This version incorporates a new look and radio frequency (RF) seam welding technology with Scubapro's unbeatable rugged performance the Classic is known for. Discerning divers will appreciate details like the easy-access chest pockets. The Classic is equipped with the super cinch tank band Scubapro's stainless steel cam action buckle system for easy adjustment and secure grip. The Air cell is made from 420-denier nylon with a polyurethane coating that is puncture resistant. Quick-release integrated weight system offers more comfort and convenience. Pouches accommodate from 10 lbs to 12 lbs (4.54 kg to 5.44kg) each (depending on size) and are secured in specially-designed pockets with oversized buckles.