OspreySiskin 8 Men's Bike Hydration Backpack

It's very robust, build to last. External department is not good. Mesh would be much better. I need to tighten straps all the time if I want to carry just a small bottle of water and if I want to put my phone inside I need to unlock all straps.but you exchange features for small size. Keep this in mind when buying it.

El ajuste de la mochila y el tamaño son perfectos. Los materiales se sienten de buena calidad y me gusta el ajuste. La buscaba como alternativa a mi riñonera con hidratacion por que últimamente estoy saliendo con mi perro y el espacio es suficiente para nuestras cosas en una rodada de todo el día.

Excelente. Buen material, calidad y bien distribuida, pensada para lo necesario.

Overall bag quality is good but there were too many deal breakers on other things. One thing that was annoying but could have lived with are in order to unzip the bag more then a few inches you have to undo two clasps. I've had other way cheaper bags that ease of use is far superior. The deal breaker for me was the bladder that comes with it. This bag comes with the osprey hydraulics lt 2.5. Which if you Google the bladder it comes with a nice quick release tab midway up the tube so that when you want to refill, you don't have to worry about removing the tube from the straps. Also with the quick release you can switch the side of your shoulder for it to come out on due to the bladder locking the tube in place. The version they send with the bag does not have a quick release. I have multiple $10 bladders that have quick release on them. Why would the company dumb down the advertised bladder for someone who just paid $100+ for their bag? This makes the bladder a 100% throw away and who buys a high end product to have to throw away the piece that's a core function? If I wanted to do that I can buy a bag at half the price and use my own bladder. The fact they they advertise it comes with a certain bladder but modify it tells me enough about the company to not use their product. I tried to pull the tube off the bladder in order to switch the shoulders and it felt like the it was about to rip. Certainly disappointing because I had high hopes for this product. Loved the magnetic clasp though

I was looking for a hydration pack for use on short, 1-2 hour rides that would hold the basics -- water and the contents of a saddle bag -- without feeling like I was wearing a pack suitable for 8 hours in the forest. The Osprey Siskin 8 meets that need perfectly for me. It will carry way more than the contents of a saddle bag, but it does so without feeling bulky or overdone. As usual, the presence of pockets in just the right places helps me keep the noisy bits like inflation cartridges separated from the rest, the bite valve and magnet are amazing, and the lid lock is a lot more handy than you think it will be at first. Great pack, superior design and construction.