Sturdy rucksack made of rugged water-repellent 4,500 HD polyester. Load transferring and ergonomic adjustable harness system with aluminium stays. Many practical convenience features with loads of utility pockets and tension straps. Large expandable side pockets and a fully opening front. Water tube access port and fasteners for fishing poles, walking poles, etc. Detachable lid which can easily becomes a hip pack. Ample head room. Can even be worn comfortably with a helmet. Reflective trim, neon-yellow rain cover and waterproof bottom.