The design for the Rockness was inspired by vintage frame backpacks, loved by the mountaineers of the early 20th century. Each part of this bag has been made by hand from exceptional materials.. Made from a British Millerain PES and cotton blend, trimmed with Italian vegetable tanned leather and lined with Irish linen. Handcrafted by Ben in the UK, in small batches of three at a time. Lifetime guarantee. A powder-coated tubular steel frame and multi-strap system keeps you comfortable and supported. 2 inch wide shoulder straps are padded with English suede for extra comfort. Soft webbing strap creates a cushion against your lower back, and allows air to flow between. 3 external pockets, an internal slip pocket, and one internal leather zip pocket. English woven drawstring closure, top grab handle. Sewn with recycled polyester thread. Approx size: H 42cm x W 40cm x D 18cm. Capacity: 30 litres. Weight: 1.6 kg. Care: do not wash or dry clean. Spot clean gently with a soap-free damp cloth. Air dry thoroughly after use, in a cool, airy environment. Portamus packs are bags of integrity. Made from start to finish by one master craftsman, using exceptional materials, they’re ready to last a lifetime of adventure. Inspired by vintage mountaineering packs, these are functional, comfortable and hardy designs. Every part of the backpack and its provenance has been considered, from canvas sourced from British mills, to the vegetable tanned leather and Irish linen lining. And for extra peace of mind, every Portamus backpack is covered by the lifetime guarantee we love.