URBNFit Yoga Ball 85 cm Large Blue - Anti-Burst Exercise & Stability Ball

URBNFit's 85 cm anti-burst yoga ball is a heavy-duty stability and exercise ball designed for workouts, active sitting, pregnancy support, and physical therapy.

This large, blue stability ball combines durable anti-burst construction with versatile function so you can use it for strength training, core work, desk posture, and birthing support. Sized for taller adults or anyone who needs a deeper hip hinge, the 85 cm ball resists sudden popping and deflates slowly if punctured, reducing injury risk and protecting your routine. It ships ready to inflate and performs best when filled to about 80% then topped off after an initial stretch.

How will this ball hold up during high-intensity workouts?

The URBNFit 85 cm ball is built to handle dynamic movements like burpees, planks, and squat variations thanks to its reinforced PVC and anti-burst design. It is meant for regular training use, giving predictable bounce and steady support under load.

• Anti-burst material that deflates slowly if punctured
• Stable surface for planks and balance drills
• Designed to tolerate drops and frequent use
• Paired well with resistance bands and dumbbells

Can I use this as a birthing or pregnancy ball?

Yes—many doulas, midwives, and expecting parents choose the URBNFit ball for pregnancy comfort and labor preparation. The 85 cm size provides a larger, more supportive surface for later-term use or taller users, and its gentle give helps pelvic mobility exercises.

• Spacious seating area for pelvic rocking and swaying
• Stable balance for perineal relief during labor practice
• Smooth surface that wipes clean between uses
• Slow-deflation safety reduces sudden movement risk

Will it improve my posture if I replace my office chair?

Swapping a chair for the URBNFit yoga ball encourages micro-movements that engage core and back muscles and can reduce slouching when used correctly. For sustained comfort, alternate between the ball and a standard chair and use a mat to prevent slipping.

• Active sitting promotes subtle core activation
• Use with a non-slip mat or base for prolonged sessions
• Recommended to alternate with conventional seating
• Adjust inflation to a comfortable, controlled height

What size is best and how should I inflate it?

The 85 cm ball fits taller users or those who prefer a higher seat and deeper hip angle; URBNFit also offers 45–75 cm sizes for shorter heights. Inflate to about 80% initially, let the ball stretch overnight, then top it up to reach the desired firmness and performance.

• 85 cm recommended for taller adults or deeper hip range
• Inflate to 80% then allow material to stretch overnight
• Top off after the first stretch for optimal firmness
• Pair with mats, rollers, and bands for full workouts

Who is this for: The URBNFit 85 cm anti-burst yoga ball suits home-gym athletes, HIIT practitioners, taller adults, expecting and postpartum parents, rehabilitation patients, and professionals who want active sitting options. If you need one durable, multipurpose tool that supports exercise, posture, and pregnancy comfort, this large stability ball delivers utility and safety with a 12-month replacement promise should it fail to hold air.