The Proviz Triviz Compatible Rucksack 30 Litre in Yellow has been given a complete overhaul to increase strength and durability. The rucksack is now dual layer; the outside material is tough 600d nylon, coated with a pvc lining to give good water-resistance. The inner lining is 210d polyester which adds strength and gives a solid and lightweight, bag designed specifically to withstand the rigours of all outdoor activities. Completed with highly reflective panelling and trim for enhanced visibility.