The DV Core units are made specifically for our Action X70 backpack and DV Roller. The Extra Large size is designed to carry and protect all the DV gear you need, with an extra depth of 20 cm (7.9 in) that makes it ideal for RED or similar-sized cine/video cameras, as well as DSLRs with super telephoto lenses. Like all Shimoda Core Units, it is made with our high-quality EVA laminated dividers and sidewalls, a lightweight and versatile removable skin, and an aluminum frame to add extra rigidity and support. The Extra Large DV Core Unit will max-out the interior storage of the DV Roller. It will also max-out the rear access camera compartment of the X70/X70HD backpacks while maintaining the separate top access storage in the roll top, so it is a good choice when maximum gear storage is paramount. To fully max-out the X70/70HD for gear top-to-bottom, including eliminating the top storage space, check out the XXL DV Core Unit.