WHEN ALL YOU WANT IS WATER, THE CAMELBAK HYDROBAK MINIMALIST BIKE PACK HAS YOU COVERED—ENOUGH WATER FOR A 2-HOUR RIDE, AND A SAFE ZIP POCKET FOR KEYS AND ESSENTIALS THAT MEASURES 6" BY 4". THE NEW CRUX™ RESERVOIR ALSO OFFERS 20% MORE WATER PER SIP FOR FASTER HYDRATION IN THE SADDLE. INCLUDES WATER RESERVOIR. 12.6" H X 3.9" W X 8.5" L