Bosmere Storm Black 3 Seater Garden Swing Seat Hammock Cover A quality black polyester 3 seat hammock cover D505 FREE POSTAGE £56.95 Quantity: at £56.95 each Add To Basket A stylish Storm Black quality 3 seat hammock cover from Bosmere. PVC backed black polyester fabric with double stitched seams for extra strength. Dimensions 220cm (86'') long, 125cm (49'') deep and 170cm (67'') tall. Zipped opening. 100% waterproof and full winter protection. Has brass coated eyelets and bungee ties for extra security in windy conditions.