The Mountain series melds hardcore functionality with intelligent design to create the ideal pack for the serious outdoor professional. Constructed of high-quality weather resistant ripstop nylon and weatherproof zippers, all Mountain series packs are amazingly weather resistant, ready to take on the most extreme conditions. From the expedition-sized Satori EXP to the fast paced Guru, these packs will keep your camera gear organized, safe and easily accessible no matter the situation.