⭐ Trusted by top athletes from LIV Golf, NBA, CFL, NFL & Alpine Canada ⭐

Orders Ship Within 1-2 Business Days

canada flag us flag

Your Cart is Empty


Fitterfirst ProActive Sit Disc Rectangle

Versatile and Travel Ready - Active Sitting Made Easy

The Fitterfirst ProActive Sit Disc is made with self-inflating Therm-a-Rest® technology. It inflates and deflates to suit your needs, making it portable and ideal for travel.
  • Over-inflate to use as bolster or for exercise
  • Improve posture on the go, rolls up to fit in bag, drawer, etc
  • Durable for standing exercises
The soft, washable fabric-covered surface is comfortable for both standing and sitting.
  • Prevents sitting & nerve pain
  • Aids in injury rehab, core strength & balance
  • Portable for on the go comfort
  • Can be over-inflated to use as lumbar support
  • Self-inflating & deflating with Therm-a-Rest® valve
  • Soft fabric-covered surface
  • Durable for standing exercises & portability

Manufactured In:
Made in Taiwan

Customer Reviews

Based on 1 review
Lindsay M
Every sport parent needs one!

I used this for the first time last night while in the bleachers for 3 hrs at my daughters tournament. What a relief! The difference in my comfort level was night and day. Just barely inflated, it gave the perfect amount of cushioning to prevent numb-bum, and it helped with my posture. Bleacher seating just got 100% better