Gio Goi Backy Mens Bag (Bags-Wallets) Gio Goi mens Backy Bag in blue. Retro style backpack with adjustable straps, large Gio-Goi Trakstar logo & front zip pocket. Also features retro PU base & metal feet. Padded at back & straps for comfort.. Approx. dimensions: Height 41cm (16”), Width 32.5cm (13”), Depth 11cm (4”). 100% Polyester.