Description
Ultra Viper-B Cornhole Bag Set – 2026 ACL Pro Series Cornhole Bags
This purchase includes one set of four Ultra Viper-B bags. Â
Built to block, the Viper-B employs a dynamic slow side material that is perfect for setting blocks. The fast side is extra quick and will cut through gaps as well as push through and collect your own blockers. If you like a bag that plays fast and slow, Viper-B is for you. Release quantities are limited. Processing can take between 5-10 Business Days. Shipping takes 2-3 days depending on your location and the carrier.Â
Video: Ultra Viper-B in Yellow/BlackÂ
About the Bag:
This bag is quite unique. The fast side is similar to the fast side of the Vapor bag and the fast side of Psycho. The slow side is the same as found on the Butter bag. Great for quicker conditions or when blocking is a part of your game. This bag is very forgiving around the hole and excellent for airmails.  Â
Speed Rating: 9/4
- Fast Side Speed Rating (Cold/Damp): 7Â Â
- Cuts through heavy moisture like the Vapor bag.Â
- Fast Side Speed Rating (Hot/Dry): 9Â Â
- Very quick. Too quick for most. But a great hole magnet if you get it close. Â
- Slow Side Speed Rating (Cold/Damp): 4Â
- Switch to the Viper if too slow Â
- Slow Side Speed Rating (Hot/Dry): 5Â Â
- More stick for blocking, cutting, rolling and flop shots. Â
Looseness Rating: 9.0
Great forgiveness and a hole magnet. Still has a good feel in the hand.Â
Durability Rating: 8.5
Probably the most durable bag we’ve ever produced. However, the fast side is prone to snagging.  The fibers of the fabric are super strong and when they catch onto a splinter they pull out of the fabric instead of breaking. This will not cause the bag to fall apart but it will look like a line in the bag.  We do not warranty fiber pull outs so be sure the boards you play on are smooth on all edges.  Â
About Speed Ratings: Speed of bags is strongly dependent on the humidity level and the type of fabric.  Cotton or duck bags will generally be very fast in hot/dry conditions and slow in cold/damp conditions. Synthetic fabric such as polyester will play much quicker in cold/damp conditions and is generally more predictable.  Speed rating of “0” means the bag is so sticky that the bag will not move even when the board is tilted at a 60° angle.  Speed rating of “10” means the bag will slowly move down the board at regulation board angle of 10.5°.
About Looseness Rating: Looseness is based on the stiffness of the fast side fabric. A tighter weave will generally produce a stiffer bag. Looseness rating of “0” means the bag is very stiff and is highly likely to clog the hole. A Looseness rating of “10” means the bag will slip into the smallest opening if the fast side speed rating is high.

Use our Approved 1hr Break-In KitÂ


Terms for Purchasing Ultra Viper-B Bags – Click Here
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t.chesonis30 (verified owner) –
They are great
bulldogau1967 (verified owner) –
Haven’t got to throw them yet but they are awesome feeling and looking
Ryan Fries (verified owner) –
Other then the regular Vipers these are my favorite Vipers of them all. Sticky side is similar to the Butters if not exactly the same. Fast side is similar to regular Vipers but a tad slower. Great bag for blocking. A good all around bag. I usually take 5 sets of bags with me everytime I play and these are always in the bag…
dragin –
Viper B’s area great. They are very hole friendly. Their slow side works good in more slick boards. If you’re a Viper lover you’ll love these in your arsensal.
Rick Guerrero –
Can’t wait to try them out
Brayden M –
My go to bag. Extremely hole friendly and controllable. These bags are great for cuts and blocks. Will also roll if you know how to throw it.
davidsenter1 (verified owner) –
I love these bags very hole friendly slick side moves up the board great and sticky side if you can call it that can be placed as a blocker if need be and easy clean up with the slick side push. The bag quality is great they feel really good in the hand. Customer service was also great. Happy customer here.
dragin (verified owner) –
If you play on slick boards, or you throw a harder bag with more rotation, these things are great. They block well and they have very controlled speed on the slow side. The fast side pushes great. An awesome slow to medium speed bag. A great bag for beginners who need more stick to the board also.