Vanguard ALTA RCXL

Quick overview from the supplier:

Rain Cover Vanguard ALTA RCXL Extra Large Camera Rain Cover. The ALTA RCXL Rain Cape (Extra Large) is an ingenious shooting in the rain solution designed to protect a DSLR with 600mm lens attached. This multi-use cover folds into a compact pouch and easily fits in any bag so that you are never caught out in a downpour without adequate protection. Always protected – comprehensive rain protection Quick-action – no fumbling simple 3-second set-up Clear view – transparent TPU window for easy use of screen, controls, and viewfinder No fumbling – fits all sized hands also with gloves on Supported – use with Tripod or Monopod Ease of transport – folds up into compact pouch Style Camera Rain Cover Size Extra Large Suitable For Example: Canon 1Ds Mark III/ Nikon D4 with 600mm f/4 lens attached Transparent Window To See Camera Screen Yes Weight 130g Dimensions (laid flat) 970×950mm Colour Black Series Alta Accessories Other Includes carry pouch