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.
The Big Boy attachment is available on all existing chair models besides the Low-Pro.
**The Big Boy attachment cannot be used on chairs with the Sidekick attachment, and vice versa**
**This is only the attachment, not the entire chair**