1. Camelbak Products Men's HydroBak Hydration Pack, Lemon Green, 50-Ounce (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
One exterior pocket

2. WASING Hydration Pack with 3L Bladder and 2 Additional Pockets. Tough Military Style Backpack Is Perfect for Hiking, Biking, Running, Walking and More. (Cp) (Click Link to Check Price on Amazon)
Editor's Rating : 8.9 out of 10
3L HYDRATION WATER BLADDER INCLUDED. No need to add one as other bags require you to buy separately.2 FRONT POCKETS. Use the pockets to carry your wallet, keys, phone, towel, small tools or other items

3. Hydration Backpack with 2 Liter Water Bladder Fits Men & Women & Children for Running Marathon Racing Hiking Backpacking Hunting Camping Cycling Walking Climbing Kayaking Outdoor Survival (Click Link to Check Price on Amazon)
Editor's Rating : 9.5 out of 10
LIGHTWEIGHT AND BPA FREE - This hydration backpack has comfortable padding in the back. It is outfitted with a channel airflow system for comfortable extended wear, keeping your body cool, dry, and ventilated when cycling, hiking, biking, etc.WATER RESISTANT AND DURABLE DAYPACK - The main compartment is crafted with a high-quality rip-stop nylon - which is water resistant - so your belongings stay dry in light/medium rain. The bladder straw and hose are both removable for easy cleaning. The bladder opening is also large for easy cleaning and filling with liquids or ice. The zipper pulls and hanging strap are reinforced for durability.

4. ENKNIGHT 20L Hydration Pack Waterproof Cycling Backpack with 2L Water Bladder Red (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
MULTIFUNCTIONAL- Three main pockets designed with insulating compartment for water bladder or laptop,two small side pocket fits your 5.5" phone,a helmet net and a rain cover.Many reflective stripe on the backpack to better protect your safety.The back suspension venting system is easier to heat dissipation.LIGHTWEIGHT & BIG VOLUME - 20L volume include 3 storage compartments and a zipper on the bottom,it will make the capacity is bigger and fits your clothes,iPad,phones,camera,water bottles or umbrella,bicycle repair tools and other personal belongings.

5. Outdoor Products Ripcord Hydration Pack, Graphite (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
Deluxe padded back with Airway cooling systemDual side compression straps to secure load