Vanguard Adaptor 46 Daypack Description. The Adaptor 46 Daypack from Vanguard is a two-in-one deal. It is not only a sturdy & functional daypack but can serve double-duty as a quick-access sling bag that will help you get the shot when it appears. With its capacity for a DSLR with grip & attached lens 3-4 extra lenses flash accessories & a 13 laptop this is a good choice for a field bag or perhaps for a photojournalist or sports shooter who needs instant access to a lens. The pack is made from a combination of nylonpolyester & lined with polyester & velvet that will be gentle on the fine finish of your gear. Speaking of the lining the interior itself is configurable using the bags movable dividers. However the wow factor of this bag is its ability to quickly change from a daypack with dual backpack straps to a sling pack with a strap over one shoulder. Tuck-away one strap & merely swing the bag to either shoulder. Zippered side pockets provide fast retrieval of gear. In addition a zippered & buckled top compartment is also available for more gear. For nature & long exposure shots a tripod holder is included. A top grab handle is included for quick grab moments. Vanguard backs the pack with its limited lifetime warranty.