Ortlieb X-plorer Dry Bags An endlessly useful totally waterproof bag ideal for holding PPE gear such as ropes and harnesses. Unlike most dry sacks they have easily adjustable shoulder straps and a hand grip. They roll down into a compact backsack but expand to hold extra gear when you need it. The new comfortable and breathable padded mesh straps are adjustable and, if you are being really active, there is a cross over strap to prevent the shoulder straps from slipping off. A good bag for cyclists as it is narrow enough not to obscure your view when glancing over your shoulder. Very strong and hard wearing. This new version has extra attachment points on the lower strap, D rings at the closure, and a carrying handle. Sadly now only available in Black. Anyone for a sack race?