Search query: camelbak backpack under $40

Product: CamelBak Hydrobak Hydration Pack 50 oz
Brand: CamelBak
Color: Black/Graphite
Relevance: Exact
Lightweight cycling Hydration pack: The HydroBak cycling Backpack is exceptional for those short Bike rides; The 50 ounce crux reservoir provides enough water for a two hour ride, with a zippered pocket and ventilated harness for comfort
More water per sip: Hydration in this lightweight backpack is supplied by a 1.5 liter crux reservoir, designed for quicker loading and refilling; it delivers 20 percent more water per sip, keeping you hydrated while you ride
Built for simplicity: When all you want is water, this minimalist bike pack has you covered; with enough water for a 2 hour ride and a safe zip pocket for keys and essentials, the hydrobak backpack is designed for those short cycling adventures
Streamlined yet comfortable: Our men’s backpack features a secure zippered pocket that is perfect for storing your essentials; the lightweight and ventilated mesh harness and breathable air mesh back panel produce a comfortable fit
If we build it we'll back it : Our got your back lifetime guarantee covers all reservoirs, backpacks, bottles, and accessories from manufacturing defects in materials and workmanship for the lifetime of the product

Product: Vibrelli Hydration Pack & 2L Hydration Water Bladder - High Flow Bite Valve - Hydration Backpack with Storage - Lightweight Running Backpack, Also for Cycling, Hiking, Ski, Snow for Men, Women & Kids
Brand: Vibrelli
Color: Black
Relevance: Substitute
High Flow Bite-Valve: The ‘Easy-Twist’ mouthpiece doesn’t leak, water flows fast and won't drip on your shoulder when locked, making it an ideal cycling backpack and water backpack for running, skiing, snowboarding, and trail running
Taste-Free Hydration Bladder: Made from medical grade materials, the water bladder is free from BPA and PVC. There's nothing worse than a plastic taste in your water, this bladder keeps your water tasting fresh, all day
Multiple Storage Options: Vibrelli's hydration backpack design has intelligent storage options and pockets without being bulky
Comfortable & Lightweight: Weighing just 14oz (415g), this hydration pack is feather-light, streamlined, and easy to adjust, it's the perfect adult and kids hydration backpack as it adjusts to most body sizes
Ironclad Warranty: This pack is built to last, which is why it’s backed with a 5-year manufacturer’s replacement warranty