Sliplock Lens cases have generous padding throughout. An OverLap zipper top provides 360° protection from shock, bumps and the elements. Attaches to core components, as well as to the Lens Trekker and Reporter bags, via the SlipLock system. This case has an extra-rigid base for wider lenses such as 20-35mm F:2.8 or other short, large diametre lenses.