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Fly High Pro X Series Fat Sac (750 lbs)  

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  • The Fly High Pro X Series Fat Sac is the most popular ballast bag ever, offering 750 pounds of capacity, and a versatile size that fits in most boats.
  • Every Fly High Pro X Series ballast bag includes these standard threaded ports built into their construction which accept Fly High's wide array of fittings
  • The versatile size and shape of the Fat Sac makes it perfect for adding weight throughout the boat, as show in the bow of this Malibu.
  • The Fly High Fat Sac can also be used in direct drive boats under the rear seat cushion when it's stored in the elevated position, as shown in this Mastercraft 209.
  • In the rear locker of this 2010 Malibu Wakesetter VLX the Fat Sac is a perfect fit.
  • Much needed bow ballast in the 2009 MasterCraft X45 Wakeboard Boat
  • Remove the rear factory ballast hard tank in the Malibu VRide and replace it with the W707 for the best Wakesurf sac
  • 2011 Supra 242 with the Fly High Fat Sac in the bow
  • Fly High Fat Sac in the Correct Craft Super Sport Nautique rear locker
  • 2007 Correct Craft Super Air Nautique 210 with the Fly High Fat Sac in the Rear locker
  • The Fat Sac is a perfect fit in the rear lockers of Centurion Avalanche wakeboard boats.
  • Malibu LSV 23 with the bags inside the boat instead of in the lockers
  • 2007 Moomba LSV with the Fat Sac using the bag buster kit
  • Sanger V230 with the Fly High Fat Sac installed using the Sanger Tank Buster kit from Wakemakers
  • Malibu Sunsetter VLX WakeMakers Tank Buster with 750 lb. Fly High Fat Sacs
  • Malibu Sunsetter Fly High Fat Sac Install

Product Videos

Fly High Pro X Series Fat Sac (750 lbs)

Item #: 11007
Product Option Price Qty
  • Grey
  • Black
  • Red
  • Yellow
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The most popular wakeboard ballast bag of all time, period.

There's a reason the Fly High Pro X Series Fat Sac wakeboard ballast bag is continually one of our best selling products; it offers a huge amount of weight for a great price, in a very versatile size. Looking for a better surf wake from your direct drive or v-drive boat? Want a better wakeboard wake or need more weight in the front of the boat? The Fat Sac works in almost any common location for nearly every application, which means chances are, it's the ballast bag you've been looking for.

The Fly High Pro X Series Fat Sac Ballast Bag is the original ballast bag that redefined new standards of weighting a wakeboard boat. The versatility of its size is the secret to the Fat Sac's success, it's the sweet spot for volume versus weight, which means it will fit in almost any boat, and offer a huge increase in wake size.

Common Applications

V-Drive Boats: Place the Fat Sac in the rear lockers next to the engine on 20-25' v-drive boats for use when surfing, or wakeboarding.

Direct Drive Boats: Place the fly high 750 on each side of the engine compartment for an additional 1500 pounds of pure wake enhancement that is perfectly balanced. Configure those same bags in an "L" shape next to and behind the engine compartment for surfing bliss.

Other Applications: Use the Fat Sac anywhere it will fit dimensionally that you need additional weight; it works well in the open bow walkway, on the floor or up in the bow on top of the seat cushions.

What Fittings Are Included With This Bag?
This Fly High Pro X Series wakeboard ballast bag includes the necessary fittings for filling and draining using a portable wakeboard ballast pump; you do not need to purchase anything else.

Optional fittings are available to make the filling and draining process more convenient, see recommended accessories for more information. This wakeboard ballast bag can also be used in an integrated ballast system which requires additional wakeboard ballast fittings. If you have any questions please contact us.
Fly High Pro X Series Ballast Bag Description
fly-high Logo
View Fly High Brand Page


Size: 50"L x 20"W x 20"H
1 Year
Weight: 750lbs.
Ports: 2 fill/vent - 1 drain
Colors: Grey, Blue, Black, Red, Yellow, Camo
Manufacturer's #: W707

Made in United States Logo

What's Included

Owner's Manual
(1) Valmex wakeboard ballast bag
(1) Fly High Quick Twist / Sac Thread Adapter
(1) Fly High Ballast Bag Plug
(1) Fly High Air Release Plug

Why Shop With Us

  • Free Shipping: We offer free shipping on every order over $99 which leaves you with more gas money.
  • Expert Advice: We use the products we sell, and our product experts have years of experience to ensure you get the perfect system.
  • Best Price Promise: We work hard to bring our customers the best products at the best prices. If you find a price cheaper, let us know and we'll match it.

Customer Reviews

  1. Great Customer Service

    Review by Crusher on 7/30/14

    Thank you for taking the time to walk me through the different selections. The fat sac works great!

  2. Rugged, well built fat sac!

    Review by sporte77@gmail.com on 7/6/13

    This is the toughest sac I've ran across. The seams and material are very tear and puncture resistant. The accessories available make it really cool & quick to use. I just leave mine in the back of my VLX. This is a must have item for surfing. The price is very reasonable as well. Highly recommend it.

  3. Good stuff at great price

    Review by Travis on 6/22/13

    Got a boat last fall, so I'm still outfitting it. Found some great deals at WakeMakers!

  4. Pro X sacs are the best

    Review by Market on 6/29/12

    I have owned many ballast bags through the years, and the Pro X ones are by far the best. I run one 750 across the back, and a 400 on each side of my DD Nautique, so they get stepped on a lot and these are way more durable than any of the other bags I have owned.

  5. Great X30 Option

    Review by Scott on 6/4/12

    I replaced the X30 hard tanks in the rear lockers with two 750's. Much better for wakeboarding and surfing. Wakemakers was great to work with for ordering and technical install support.


  6. Wakesetter LSV must have

    Review by Liquidrider on 4/28/12

    Fits perfect in a Wakesetter lsv. Made a huge difference with the surf wake. I love the quick disconnect fittings. Best bag for the money!

  7. VTX Surf Wake

    Review by toomuchhype on 8/22/11

    Great sac for the back locker of my VTX. A must-have if you want to surf. Fly High is the only way to go for ease of filling/draining with no leaking. Fill it up, fill up the factory tanks, throw down the wedge and you are surfing all day with no rope.

    NOTE: We also offer options for integrated the Fat Sac with the factory ballast system in your Malibu wakeboard boat. Contact us for additional information.

    - WakeMAKERS.com Team

  8. Fly High 750 ballast upgrade in 08 Moomba LSV

    Review by cpatten on 8/16/11

    I have a 2008 Moomba Mobius LSV that I recently switched out the Factory 400 LBS sac for a Fly High 750 from Wakemakers. The new upgrade made all the difference in the world for surfing. It not only increased the size of the wake and curl I was able to produce but, it also lengthened the pocket. Surfing before was a constant struggle. I am still dialing the perfect wake in but I know I made a great start with the new ballast bag!

    (NOTE: If you have a Supra or Moomba boat and would like to upgrade the factory ballast system for surfing using the Fat Sac, make sure you check out our <a href="http://www.wakemakers.com/catalogsearch/result/?q=bagbuster" title="Supra Moomba Factory Ballast Upgrade">BagBuster Upgrades</a> for a complete plug-and-play solution).

  9. Great in Malibu vride lockers

    Review by shawndoggy on 6/21/11

    These sacks fit perfectly in the rear lockers of a malibu vride. They fill almost all the locker when full, and when empty give a ton more storage than was possible with the above the floor hard tanks. Jason and Spencer were great in helping me fine tune and troubleshoot the retrofit. Thanks wakemakers!

  10. V DRIVE FAT SAC 750s

    Review by Torsten on 3/26/11

    I bought two of the 750s to put into my 95 Nautique Super Sport. They fit perfectly into the engine compartment next to the GT-40. I bought the Black color to match the interior of the boat, shows less dirt! Definitely get the quick-connects! this is the best way to hook them up! The fittings fit snug and secure and are easy to install.

    Added bonus.
    The customer service from WakeMAKERS is 110%! These guys know their products, unlike other companies. Call them and they will tell you exactly what you need! The Product arrived quickly, packaged securely and is TOP quality. Thanks guys, you will get more of my business!

  11. Excellent surf sac for Supra 21v

    Review by James on 9/26/10

    These bags are a huge improvement over the stock bags on my '09 Supra 21v. Great surf wake. Plug n' play. Takes 2 seconds to hook them up. Makes for a great wave.

  12. Huge quality improvement

    Review by ScruffRide on 7/12/10

    I bought a pair of 750's to place into my VLX. I had been using less expensive sacs thinking there couldn't really be that much quality difference. I could not have been more wrong. These bags are tough, with the seams just as strong.

    The ability to actually screw your pumps and attachments into the bag meant no more pushing on the pump to prime it and no more leaks. Made it perfect for a permanently plumbed system.

    I was on a tight schedule (one of those cheap old bags ripped, again) and wakemakers made sure I was set up and ready to go within the two days I had until the weekend when I was leaving town. Good customer service and follow through. I'll be using them again (though I won't be needing any bags for a long time).

  13. Best Option for VLX

    Review by Chad on 6/22/10

    I have two of the Fly High 750's in the back of my Malibu VLX. They fit perfectly and really fill up the bay's nicely. The 750's make for a great wakeboard or surf wake. They are super durable, well made, and the color options even look pretty. Highly recommended!!!!

  14. Great surf sac for a DD

    Review by WakeMikey on 1/27/10

    Put this on the floor of my 87 SunSport DD and the surf wave is huge! Highly recommended over other brands, much higher quality and lots of fittings. Here are my pics: http://photos.wakeboarder.com/showgallery.php/ppuser/35518/cat/500

  15. VLX beauty

    Review by Ronix on 5/18/09

    This sac dialed in my surfwake on my VLX. Fits perfectly, without being in the way, great sac! I bought one for each side.

    I would defianately use wakemakers again.

  16. Fly High Fat Sac is the Best Ever Made

    Review by Spence on 3/31/09

    I have put this sac in so many boats and so many places without ever having a problem. From the vdrive compartments of a Malibu VLX, Supra 24, or a centurion C4 Avalanche to the walk way of an I/O this thing is awesome. It is the most versatile sac in the Fly High line. If you have to buy only one sac make it the Fat Sac.

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