The Rip Curl E-Bomb Pro 1.5mm Long Sleeve Jacket is the most flexible jacket available. It's built with E6 Neoprene, the most flexible and high-performance neoprene that Rip Curl has ever had. Pull chord waist allows easy tightening at the waist and the boardshorts loop allows you to tie your boardshorts to the jacket, preventing it from getting pulled off when surfing on bigger days.