Fitterfirst ProActive Disc

The Most Versatile Active Sitting Disc Available
Fitterfirst ProActive Disc
More Videos Available in "Additional Videos" Tab Below
Show Product Images Show Product Video


In stock


This self-inflating ProActive sit disc is perfect for your active sitting and exercise lifestyle. This multi-functional balance disc has various uses, from creating an instable sitting or exercise surface to injury rehabilitation and sitting pain prevention. Another great FUNctional Fitterfirst tool! Valve has Therm-a-Rest technology.

-Great for travel, very compact when deflated.
-Over-inflates to be used as a bolster for exercise or sitting.
-Provides relief from nerve and muscle conditions such as sciatica

Download Chair Accessory Comparison Chart Here

5 Stars
My husband bought me my first one after I had lower back surgery in 2005. It simulated the big ball that I also used but this was portable for me. The price has not changed at my surprise. Using this especially when sitting for long periods of time made a huge difference and aided in my recovery from the surgery. My back felt stronger and it helped my core with posture and strength. I love this.
Did you find this helpful? 
Reviewed by:  from Atlanta, Georgia. on 8/24/2016
4 Stars
Proactive disc
Because I do a lot of sitting and have shoulder issues the proactive disc helps me to sit properly without hunching over. The fact that you can adjust the amount you inflate it is a bonus.
Did you find this helpful? 
Reviewed by:  from High River. on 8/18/2016
5 Stars
Helps me sit in so many places.
I love this disc so much, I had lumbar surgery 6 months ago and I take it to restaurants and music events. I find my husband keeps borrowing it, so I just ordered one for him. Very happy with this product.
Did you find this helpful? 
Reviewed by: (Verified Buyer)  from California. on 7/11/2016
5 Stars
My Whoopie Cushion is Great!
My colleagues affectionately refer to my disc as my 'whoopie cushion' and now I do too. It's a great way for me to be more conscious of my posture and therefore more comfy throughout the day. I bought one for my hubby for father's day and he really likes his too. I have not hesitated to refer my colleagues who've asked.
Did you find this helpful? 
Reviewed by:  from Ottawa, Ontario. on 6/28/2016
5 Stars
LOVE it!
I just purchased my second disc so I could have one at home and at my office. I have low back issues and this item is the PERFECT cushion to have if you sit for hours at a time. I bought my first one several years ago and it is still in perfect condition!
Did you find this helpful? 
Reviewed by:  from Long Beach CA. on 5/31/2016
4 Stars
satisfied customer
I have an older model that I have used for many years, very satisfied. This newer model has a stiffer nozzle that is hard to adjust with one hand. Also I would have appreciated some special instructions with the disc for first time use since it takes a long time to inflate (24 hours). I called Fitterfirst and they explained so that service was great. Still satisfied with this version and have recommended it to numerous friends.
Did you find this helpful? 
Reviewed by:  from Montreal. on 4/13/2016

Technical Specs

Product DimensionsShipping DimensionsShipping Weight
ADISC15 15” x 15” x 2” 24” x 4” x 4” 1lbs
ADSICR 16.5” x 11.5” x 1” 24” x 4” x 4” 1lbs

Our Guarantee

Our product guarantee assures you 100% satisfaction - unconditionally. If it's not right, we'll make it right! Our friendly, helpful team will always do their best to make your experience with Fitterfirst® a pleasant one.

Return Policy

Every item sold by Fitter International is unconditionally guaranteed.

If for any reason you should find our products unsatisfactory, you may return the product within 30 days. Before returning any product, please call customer service at 1-800-fitter1 (1-800-348-8371) for a return authorization (RMA) number. No product will be accepted without a RA number unless it is a local order that is brought back into the showroom. With the exception of shipping errors, refunds or credits will not be issued for shipping charges.

Related Items

VIP Lifetime Membership
Price: $20.00