Want to maximize comfort on your Vyper Chair? Then the Big Boy is the attachment you need! The Big Boy attachment provides an additional 6" width to your Vyper Chair, making it perfect for those that have a wider frame. Available for all models besides Low-Pro & Lay-Down Creeper. This is only an attachment, not the entire chair
Trusted by +150,000 Customers
Trusted by +150,000 Customers
Made in USA
Increase efficiency through organization by adding a tool tray to your chair! This tool tray is made with mild steel that's powder coated in black wrinkle. Not attachable with the Low-Pro or Lay-Down Creeper.
Increase efficiency through organization by adding a tool tray to your chair! This tool tray is made with mild steel that's powder coated in black wrinkle. Not attachable with the Low-Pro or Lay-Down Creeper.
The armrest that finishes the chair. You're either configuring your first Vyper chair right now and wondering if armrests are worth it, or you've been using your Vyper for a...
The armrest that finishes the chair. You're either configuring your first Vyper chair right now and wondering if armrests are worth it, or you've been using your Vyper for a...
The next level of comfort for your Vyper chair. The stock backrest is built right, contoured to the lumbar, and works for most buyers exactly as designed. The Adjustable Backrest...
The next level of comfort for your Vyper chair. The stock backrest is built right, contoured to the lumbar, and works for most buyers exactly as designed. The Adjustable Backrest...
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Designed, manufactured, and packaged
in Green Bay, Wisconsin. Every chair,
every cart, every creeper.
Trusted by +150,000 CustomersSee Before You Buy
See why +150,000 customers ditched their old shop chairs
and made the switch to Vyper.
The seat upgrade for the rest of us. You're either configuring your first Vyper chair right now and wondering if your frame's going to fit comfortably on a 14-inch round seat, or you've owned the chair for a while and your hips are hanging off the edges by hour two. Either way, the answer is the same. The Big Boy attachment adds 7 inches of seat width and a thick steel base plate that turns the standard chair into the seat that actually fits.
It's not just for big guys, either. Plenty of average-frame buyers add the Big Boy because the wider seat means you don't have to center yourself perfectly when you sit down, you've got more leverage to push off when standing, and the chair feels even more rock-solid underneath you.
This is only the attachment, not the entire chair
Used By The Pros Everyday.
Trusted, tested, and used by the best in the industry.
BIG BOY ATTACHMENT
See why +150,000 customers ditched their old shop chairs and made the switch to Vyper.
Trusted, tested, and used by the best in the industry.
Proudly American Made
Designed, manufactured, and packaged in Green Bay, Wisconsin. Every chair, every cart, every creeper.
Trusted by +150,000 Customers
Overall rating: 4.9 / 5 from 649 reviews.
I had been searching for a nice roll-about for my craft area for quite some time. When I stumbled upon Vyper products, I chose the extra seat attachment for basic comfort for me as well as for some neighbors who fill it completely.
I sit Indian style and the extra width is great at keeping my legs supported while they’re crossed.
Nice for a bigger guy!
Great shop stool
LOL
Big Guy must have
Great addition to the chair !!!
An excellent addition to the seat. I know that it's a chair for use in the garage, but I'm using it in my music room. The chair is excellent for playing guitar as it is a perfect height and the backrest keeps your spine straight up and down. The seat addition was quite easy to install and is well constructed. This chair is built to last no matter what you choose to use it for and well worth the investment!!!
Since im a little guy. 6'4" 315. Thought this would be a great upgrade to my no.5 chair. Perfect
Outstanding quality!!! Very solid and extremely well built!!!
Nice to have extra room to move around in
I put together the three stools today, every thing very nice, but no saftey rubber strip for one of them was not in the box.
Very nicely designed chair with excellent materials and part quality. I’ll eventually be passing it down to my kids to use, it’s so well made.
If you are a big and tall person then just buy this for the added comfort. Expensive but definitely more comfortable.
I should have ordered a Viper chair years ago. It is hands down the best garage chair I have ever used. I purchased the fully loaded Robust Steel Max and as soon as I sat in it I knew it was exactly what I wanted in a garage chair. The construction is superb, the fit and finish is exceptional. When I rolled around my garage on it I never sat in a chair that moved that smoothly. My back enjoys the support provided by the backrest. I truly wish I had purchased one years ago.
I love the additional support that the Big Boy attachment offers. It makes the chair much more comfortable and supportive.
Love it! The fact it rolls over everything is awesome, how smooth it rotates even with my large body on it, should have bought it years ago!
Nice edition to my chair.
tger is no give in the padding very uncomfortable as if you are sitting on a concrete made pad. I will never by this item again or recommend the expensive item.
The big boy attachment makes my Vyper chair more usable.
Love the quality. I do find I have to be careful getting on so it doesnt roll away from me
The Big Boy attachment is a great addition to any chair belonging to a heavy bodied user. It adds just the right amount of extra support for your buttocks if you are sitting for any length of time. It is a great addition to an already great chair!
I freaking love this stool and big man seat highly highly recommend this setup
Built my chair with the big boy option right off the bat. I may try removing it down the road to see if I like it better. The seat material quality is nice, but the large seams between main seat and this add on are rather uncomfortable after longer sitting sessions.
make a great deal difference in comfort
Loved it easy to add to your reg chair
A must have
Outstanding product!! Fast shipping made in the USA!! Absolutely love it. Thanks
Excellent product. Functions as advertised.
I bought it for my husband. So far, he’s pleased with it.
Love the big boy attachment, adds a lot of comfort to an already really comfortable shop chair, particularly because it has the backrest. I was finding it hard to get the chair backrest straight in line with my back when sitting on it (I have the elevated model and it’s at bench height plus I am a little vertically challenged, so I have to tip toe to get up into the chair) the seat would rotate as I got on it, misaligning the backrest. It was possible to align but took extra effort to do after getting on, the big boy attachment squares the seat so you naturally sit right in line with the backrest, it puts the back of the chair right where it should be. Also, because I normally sit a little further back on a backless stool, I am forced a little forward with the backrest, so when my legs would wrap around the sides they are pushed more forward, the extra room on the big boy attachment gives them support, which makes the entire chair much more comfortable than a stool. My only complaint is that I purchased the Ford edition chair with blue stitching and the big boy didn’t have an option to match. Not a big deal, just a small detail. Would definitely buy again if I get a second chair for the other section of my bench that has a stool there now.
It is comfortable. The installation was a little confusing but logic won out and everything came together nicely.
Still waiting on my adjustable back rest
I bought this as a shared chair for both of us.. and I'm Quickly seeing that it will be short lived and when I can work it into our budget .."one of us" will have to be giving up their share of the current chair for a new one!!! Thank you for this truly great experience!...sincerely..
Nice product with defective stitching in one pad, Vyper sent a replacement pad with same defect. The other pad is fine. Kind if disappointing but it is functional.
The Big Boy gives me plenty of room for comfort and support.
Great accessory really enhances the comfort of the chair.
I bout two and they are awesome I only issue is I only bough one big boy attachment I will be coming back for the second one shortly
Perfect addition
Fun to put together ! I am a CAD dental designer, my new stool is way better than my old one. I looked at few stools at some retail outlets. I never saw a Vyper stool in person only on TV. It is way better than anything I looked at! The fit and finish is awesome! I just put it together today. The seat is unbelievable. Looking forward to doing my job next week in it. GAME CHANGER!
Everything you need to know before you upgrade.
The most-purchased Vyper accessories are the Adjustable Backrest, Adjustable Armrest, Big Boy, Tool Tray, and Sidekick. Each one solves a specific problem:
All accessories are made in Green Bay, Wisconsin and ship with the same warranty and 30-day guarantee as the chairs themselves.
The Sidekick mounts on the side of the chair for what you're actively using (spray bottles, polishers, microfibers, a cold drink), while the Tool Tray bolts underneath for what you've already used or what might fall (loose bolts, dropped sockets, shop rags, small parts).
They're built to work together, not against each other. Detailers and fabricators who run the Complete Package (Robust Steel Max + Tool Tray + Sidekick) consistently say the two-accessory combo turns the chair into a real mobile workstation. Sidekick at hand for the polisher you're using right now, Tool Tray below for the spent microfibers and parts. If you can only pick one, the Tool Tray is the accessory most buyers later say they wish they'd added from day one.
No. The Big Boy and the Sidekick cannot be installed on the same chair, they mount in the same location and you have to pick one. Our specialists at (920) 301-3822 can walk you through the right choice if you're not sure.
The decision is usually clean. If you're a larger-frame buyer (or an older buyer wanting more leverage when standing), get the Big Boy. If you're a detailer, fabricator, or anyone who works with supplies at the seat all day, get the Sidekick. The Adjustable Backrest, Adjustable Armrest, and Tool Tray all work with either choice, so you don't lose any other accessories by picking one over the other.
For most buyers, the stock backrest is built right and works exactly as designed. The Adjustable Backrest is the upgrade for the buyer who lives in the chair, taller height range, up to 10° of recline, and the ability to dial in the support position to your specific body and the way you actually work.
Roughly half of buyers add it during initial chair configuration. The other half buy it months later, after deciding they want to fine-tune the backrest position even further. Reviewers consistently describe it as the upgrade that turns the chair from "comfortable" into "I never want to get up." Compatible with the Robust Steel Max and Elevated Steel Max chairs, and pairs with either the Big Boy or the Sidekick.
The Big Boy adds 7" of additional seat width, built for two specific buyers: larger-frame customers (280 lbs and up, or anyone who finds the standard seat too narrow) and older buyers who want more leverage when sitting down and standing up.
Reviewers consistently call it a confidence upgrade. The wider seat means you don't have to perfectly center yourself when sitting, and the wider surface gives you something to push off when standing. It's the most-recommended upgrade in the Vyper review base for buyers in their 60s, 70s, and 80s. Available on all Vyper chairs except the Low-Pro and Robust Steel Sport. Cannot be combined with the Sidekick.
Yes. Every Vyper accessory is designed to bolt onto chairs already in your shop, you don't have to buy them at the same time as the chair. Roughly half of buyers add accessories during the initial chair configuration. The other half buy them weeks or months later, after deciding what they actually need.
The Tool Tray, Sidekick, Big Boy, Adjustable Backrest, and Adjustable Armrest all install with basic hand tools and ship with instructions and hardware included. If you bought your Vyper chair years ago, the accessories from today's lineup are still compatible with the standard chair models. Call (920) 301-3822 if you're not sure whether an accessory fits an older chair.
The Vyper Backrest add-on works on the Robust Steel Pro and the Low-Pro Backrest works on the Low Pro, for buyers who started with a stool form factor and decided they wanted lumbar support after the fact.
The Big Boy is not compatible with the Low-Pro, but is compatible with the Robust Steel Sport. The Tool Tray and Sidekick are designed primarily for the Robust Steel Max and Elevated Steel Max chair frames. For a stool-specific tool-holding solution, the Robust Steel Pro ships with a built-in stationary tool tray as a standard feature, no add-on required.
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