The Canfield Sustainable is weather resistant, durable, sleek, and made from a recycled nylon material which gives the bag the same smooth feel and look as our non sustainable bags. The roll top design enables a wide-mouth opening, complete with a zip and a magnetic hold and so you can fill this bag to the brim worry-free. Each small bag is 33cm x 23.5cm x 9.6cm. This option is great for keeping smaller tablets or notebooks safe and sound while still looking streamline. The Small Canfield B can store your daily belongings with room to spare. Capacity 7 litres. Outer material: weather-resistant matte recycled nylon, giving a smooth feel (triple coated). Base material: weather resistant canvas (triple coated). Lining material: matte recycled nylon. Hardware: galvanised, smoked, branded metal. Straps: cotton webbing. All Roka products are vegan.