1. RIQIK Military Hydration Bladder with Clips to Hold Drinking Tube - Premium Quality LeakProof Water Storage Tank - Replacement Reservoir for Backpacks- 3 L Capacity - For Biking, Hiking, Traveling (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
ALWAYS READY TO QUENCH YOUR THIRST - Fit 3 liters of ice cold water comfortable in any backpack and always never be left dehydrated with our water bladder. Excellent choice for outdoor enthusiasts who love biking, cycling, hiking, or running in the sun!ANTIMICROBIAL AND SAFE CHOICE - Each water bladder is tastefree, non-toxic, BPA free, and SGS + FDA certified. Microban material so there is no need to worry about any harmful chemicals in our products!

2. WACOOL 3L 3Liter 100oz BPA Free EVA Hydration Pack Bladder , Leakproof Water Reservoir , FDA Approved (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
Capacity: 3 Liter (100oz), 100% odorless, tasteless, BPA- Free EVA materialFDA approved, SGS certification.SGS Report No.GZHG1411043611SP

3. Homitt Hydration Bladder Water Reservoir Approved by FDA, 2 Liter Water Reservoir fits Most Back Pack for Hiking, Biking Trip and Outdoor Event (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
Material and Certified: The hydration bladder is manufactured of microban anti-bacteria material. Water reservoir is made of high quality neoprene, and approved by FDA. Please be assured the homitt Hydration Bladder Water Reservoir is safe for drinking.No Leaking and Easy to Clean: The water reservoir with no leaking technology and good sealing for connector. The screw on cap goes on and off easily, and the bag opening is fairly wide for a hand, washcloth or bottle brush.

4. Hydration Bladder 70 oz / 2 Liter - Suitable for All kinds of Hydration Pack - Water Storage Bladder Bag - Water Reservoir Pack for 2L Hydration Backpack System (ArmyGreen, 70 oz) (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
★Professional military Hydration Bladder,Eco-friendly material,100% odorless, tasteless, BPA- Free material. Best for hydration pack.★FDA APPROVED: Food-grade premium quality anti-bacteria materials. Thick bladder material is pressure-tolerant and wear-proof.

5. WACOOL 2Liter 70oz BPA Free PEVA Running Cycling Hiking Hydration Bladder , Leakproof Water Reservoir, FDA Approved. (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
Update the Bite Valve. easy to Drink.FDA Approved.SGS certification.Tightness test.