Hit the trail prepared when you head out with the Osprey Viper 4 Hydration Pack. This hands-free hydration system stores up to two liters of water and can tote the other essentials youAAAll need during your trail runs, rides, and hikes.
Strengths: Water tastes like water. Not llike CB's bladder which taste like plastic. No leak. Love the magnetic clip for the mouthpiece. Light, comfortable (fits my back), cool. Very easy to remove bladder and easy to refill, unlike CB's.
Weaknesses: Not much storage room, but I like to carry minimul stuff anyway. Spare tube, CO2, levers, wrench set (compact), chain tool and spare master link. With all that, fitting a smart phone is tough. But if you have a small flip phone or similar, it has a pouch on the shoulder rest for it.
Best pack owned by far. Will buy again if anything ever happens to this one.
a Cross Country Rider
from Grand Blanc, MI, USA
Date Reviewed: November 12, 2011
Strengths: Looks great, quality construction, light weight, comfortable to wear, easy to fill, easy to load reservoir into pack (not so with many hydration systems), easy to clean, easy to use while riding, okay to use with Heed or similar drinks, detail features are nice (bite valve works well, gel pouch on front of left strap, lid lock, small zip pouch for keys, phone,etc.), great value at this price!
Weaknesses: None yet.
Very pleased with every aspect of this system. It's my favorite of the 4 that I have due to style, features, and by far the easiest to fill, load, use, and clean.