Double Oak Essentials Green Waxed Canvas & Leather Backpack – 20L. Green waxed-canvas backpack with full-grain leather detailing from Double Oak Essentials. Vintage-inspired design with a padded laptop compartment, adjustable shoulder straps, a top carry handle and durable YKK zips. A versatile bag for work, everyday use or short trips, with space to organise your essentials. Capacity: 20 litres. Approximate dimensions: 45.7 × 31.1 × 16.5 cm, height × width × depth. Retail: 150€