These sustainable vegan friendly ROKA backpacks come with a roll top design which allows you to fill your backpack to the brim! Spacious and stylish, these unisex backpacks have been made using 12+ plastic bottles that creates the recycled nylon that helps to make these backpacks lightweight, durable and weather resistant; just what you need to accompany you on your everyday travels! Features: Zip & Magnetic Fastenings Internal Zipped Pocket Internal Laptop/Tablet Sleeve (Space Enough for a 15” Laptop) Front Zipped Pocket Outer Material: Recycled Nylon Base Material: Canvas Lining Material: Matte Nylon Strap Material: Cotton Webbing Size: 42cm x 30cm x 12cm. All ROKA bags are vegan friendly. Behind the ethos of each ROKA bag is their commitment to provide you with a functional, weather resistant and durable bag that is lightweight to carry and made from eco-friendly and ethical materials. 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 medium bag is 42cm x 30cm x 12cm. Capacity is 15 litres. The medium size can hold a 15” laptop. 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.