BEST SELLER
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Flex Backpack
For players who bring everything—and still pack light.
$224.95
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Bag Size Guide
The Father’s Day Sale is on—15% off site wide. Ends June 10.
Order by June 8 for on-time arrival.
Fits 2 rackets or 3 paddles, with padded dividers to protect from heat, tension loss, lamination and daily wear.
18 compartments including quick-access zones, hidden back panel pocket, and a clear sleeve for toiletries or small essentials.
Expandable gear canopy flexes to carry shoes, layers, or a helmet—adding space without the bulk of a larger bag.
Weatherproof exterior, structured base, and YKK zippers keep your gear dry, upright, and protected from the elements.
Engineered for daily use and long seasons—backed by ADV’s 10-year durability guarantee.
🎁 FREE color-matched medium cube ($29.95 value) with Flex purchase. Not shown in cart — we’ll add it after checkout. While supplies last.
🎁 FREE color-matched medium cube ($29.95 value) with Flex purchase.
Estimated Delivery Date:
FREE U.S SHIPPING OVER $100
10-Year
warranty
Easy
Returns
The 3rd generation of our best-selling Pro tennis bag. New features include height adjustable straps, a toiletry pocket, and a better fit for 6 racquets. A tennis racquet bag with durable materials and engineered functionality to outperform and outlast your opponents. Tennis players and coaches no longer have to compromise on a quality tennis bag that holds all their racquets and essentials.
The ADV Flex Backpack is made for tennis and pickleball players who prep like pros. With space for two rackets or 3 paddles, 18 precision-placed compartments, and thermo-lined protection for your gear, this pack keeps everything in place—from warm-up to cooldown. The expandable canopy boosts capacity on demand, giving . . .
Designed for Tennis and Pickleball
Tennis Pickleball Specific Features
- Fits 2 racquets in the main compartment with padded dividers
- Racquet latches to prevent racquets from moving.
- Holds up to a can of 4 balls.
Pickleball Specific Features
- Securely fits up to 2 paddles in the back paddle compartment.
- Front magenetic sleeve for quick access to another paddle.
- Side pockets hold loose 3 pickleball balls or a can.
Interior Features
- Fits two rackets or 3 paddles with padded protection and thermo-lined insulation.
- 18 total compartments for organized storage of gear, accessories, and tech.
- Quick-access zones for grips, snacks, and small essentials.
- Dedicated laptop sleeve fits up to 16" with a water-sealed zipper and protective false bottom.
- Secret side-access utility pocket for grabbing essentials without removing the bag.
- Clear internal sleeve for toiletries, sunscreen, or grooming items.
- Bright interior lining for better visibility in low light.
- Designed to fit ADV packing cubes for modular storage.
Exterior Features
- Expandable gear canopy holds shoes, jackets, or a helmet.
- Structured base keeps the bag upright on any surface.
- Weatherproof outer shell withstands rain, dirt, and daily wear.
- YKK zippers and reinforced handles for long-term durability.
- TSA-compliant dimensions for carry-on or under-seat travel.
- Luggage loop secures to rolling bags for smoother transit.
- Cushioned, spandex-lined straps for all-day comfort.
- Magnetic exterior sleeve for paddle or jacket quick stashing.
- External utility loops for hanging towels or name tags.
- Stands upright to prevent spillover or gear tipping.
- Racket latch secures handles to prevent shifting during carry.
Specifications
- Length: 18"
- Width: 12"
- Depth: 7.5"
- Volume: 27L (expands to 32L)
- Weight: 3.1lbs
Everyday tested.
Court approved.
COMPARTMENTALIZED. CLEAN. CLUTCH.
EVERYTHING IN ITS PLACE. NOTHING IN YOUR WAY.
Grips, balls, laptop, and snacks—this bag keeps your court-day or workday essentials organized, visible, and ready when you are.
MORE ROOM FOR GEAR. LESS BAG TO CARRY.
A CANOPY BUILT FOR OVERFLOW.
The stowable spandex canopy flexes when you need extra space, fitting larger items like shoes, outerwear, or even a bike helmet—while keeping your pack sleek when you don’t.
Everyday-ready. Court-tough. Travel-smart.
VERSATILITY THAT GOES BEYOND THE COURT.
From match days to meetings, travel to training—this is your do-it-all backpack. Stands upright when you need it. Hangs clean when you don’t.
Rugged build. Premium materials. Guaranteed to last.
DURABILITY YOU CAN FEEL—AND COUNT ON
With a weatherproof shell, hand-sewn construction, YKK zippers, and a 10-year warranty, it’s built to handle hard days and long seasons.
“perfect for my commute"
"durable & adaptable"
“everyday grab and go”
“use on and off the court”
“perfect for my commute"
"durable & adaptable"
“everyday grab and go”
“use on and off the court”
“perfect for my commute"
"durable & adaptable"
“everyday grab and go”
“use on and off the court”
“perfect for my commute"
"durable & adaptable"
“everyday grab and go”
“use on and off the court”
“perfect for my commute"
"durable & adaptable"
“everyday grab and go”
“use on and off the court”
“perfect for my commute"
"durable & adaptable"
“everyday grab and go”
“use on and off the court”
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Flex Backpack
Built to organize more—without weighing you down.
10-year warranty
Our ADV Bags come with a 10-year warranty, ensuring long-lasting performance and peace of mind. If anything goes wrong, we’ve got you covered.
Frequently Asked Questions
What’s the difference between the Backpack V2 and the Flex Bag?
Flex is our most compact bag yet: 27L (expandable to 32L with the canopy) vs. the Backpack V2’s 37L. It’s designed for everyday use, fitting up to 2 racquets or 3 paddles, and is fully TSA personal item compliant (18” x 12” x 7.5” - inches).
It features external shoe storage (instead of internal, like the Backpack V2) and doesn’t include a cooler, keeping the form lightweight and streamlined. Same ADV quality. Just a smaller footprint.
Not sure which bag fits your routine and game?
Take our 2-minute quiz here. We’ll ask a few questions about your setup to help you find the best fit.
Which packing cubes fit in the Flex bag?
1 medium or 2 small packing cubes fit comfortably inside, and you can add another cube to the front (if needed), latched by the expandable canopy.
The cubes are made of the same material, with the addition of silver ion (to prevent the funk). They were designed to complement all ADV bags.
What colorways are available?
Flex is available in our staples — Midnight, Lava, and Volt. Additionally, Flex comes in our new colorway Dune, and exclusively in the color Aqua.
Is there a hanging hook on Flex?
I mean….would it be an ADV bag without it? There’s a sturdy hook tucked away at the top to hang your bag courtside, keeping even the rugged tarp bottom fresh.
Unanswered question?
Shoot us a note at help@advtennis.pro or send us chat message
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