The Billingham 225 Shoulder Bag is designed to carry a digital SLR camera with three lenses and accessories. It is constructed from soft-weave fabric which helps eliminate abrasions, combined with Stormblocker dual-laminate waterproof canvas. The bag has a heavy-duty, closed-cell foam padded interior and a double-laminated, removable hard bottom. In black canvas with tan leather trim and green interior lining, it has a Superflex 9-15 partition for separating and organizing the interior.

The 225 bag has four interior slip pockets located between the main inner compartment and the exterior, two large front exterior pockets and two pen pockets on the front. It is carried by an interior grab handle that allows the protective cover flap to remain open, or by a leather grab handle that snaps together securely for easy hand carrying. A Delta Sling shoulder strap with a heavy-duty, neoprene-backed, leather shoulder pad provides another transport option.