🚲 Osprey Seral 4 Lumbar Bike Hydration Pack in Black - Ultimate Comfort and Efficiency, One Size Review

The hydration bladder is a bit large for the overall size of the bag, but you can fit everything you need in it. Great fit and overall quality

Magnet not strong enough to hold bite valve. It's a big problem when the camera keeps falling while mountain biking or dirt biking. For the price I expected better

I use it for endurance rowing, usually hit it a few times before taking a break, about 4 miles. Works perfectly. Don't understand why. The magnet is strong. Easy to refill. To dry it I bent a wire hanger to fit inside the bubble.

Fits easily in wallet, phone and keys (plus room for a few small bike tools). The magnet will hold the reservoir tube in place while riding or hiking (remains secure even in the event of a strong impact). Best of all, it eliminates that sweaty back you get when using hydration packs.

The Osprey Seral 4 Lumbar Hydration Backpack is a smart and convenient "belt bag" with a large 1.5 liter water reservoir. The backpack is well designed and has multiple internal pockets including water storage. The back of the pack has thick padding to keep it pressed against my lower back and after a few minutes of riding I almost forget it's there, that is until I have to fight the water hose again. It's advertised as a bike water bottle, but the mouth spout isn't well designed. It attaches…

I had high hopes for this trendy backpack. I've been using mountain biking hydration packs for a long time (20+ years) and wanted to try something different. After hearing about the benefits of taking the weight off your shoulders and lowering your center of gravity, I thought this would be ideal. I've been very happy with my other Osprey packs and luggage so this is a rare failure. The good news is that it has enough space for water, groceries, tools, hose, wallet, keys and phone. With those…

Probably the best hydration system I have. To be honest, I have 14 Osprey products! Why? For what you carry with you into the deadly wilderness fails, you fail. Failure can mean death. Most likely, this means that nature and wildlife win. If you follow me and read my reviews you will know that I really appreciate Osprey products for their exceptional quality and usefulness, but they always look amazing! Those who create the look of Osprey products strive for fearless craftsmanship in fashion…