Timber Hawk Spike Pack, Realtree Xtra Rugged yet minimalist hydration day pack; includes 2-liter Hydrapak reservoir, tubing and bite valve Main compartment with interior mesh zipper pocket; padded front organizer with five accessory pockets and key clip High density breathable foam padded back and shoulders; yoked style shoulder straps with sternum strap for perfect fit Interior is lined with ultra-quiet, durable twill fabric for stealth in the field; Hawkeye bino strap system 608 cubic-inch (15.2-liter) capacity; backed by a manufacturer's lifetime warranty