Napa Buoyancy Aid - Blue The Napa Buoyancy Aid is designed for your ultimate whitewater adventures. With Gul rescue-equipped PDF features and PIVOT 360* Core Technology it provides extreme and complete freedom of movement. Furthermore, it has failsafe shoulder straps withh a self-locking pulley system. It is hydration-bladder compatible, with multiple attachment options, internal rear pocket, a large front pocket with divider and double chest pockets for carabiners. Features - Spacer mesh liner, side zip entry, reflective details.