SISSEL Pilates Soft Ball Gray
- Exercise Ball
- Pilates
- PVC
- pilates ball
- More reviewed than 57%
A well-made, latex-free soft ball that holds up to inflate and deflate for Pilates and physical therapy use; hang onto the included straw.
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How it ranks among the 88 exercise balls we track
4.5★ across 895 Amazon ratings, Bayesian-smoothed toward the category average.
895 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 88 exercise balls we track - how the scorecard works · full exercise balls data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
An 8.5 inch inflatable Pilates soft ball from SISSEL, made of phthalate- and latex-free PVC with a 340 lb load rating. It's designed for core and spine work rather than as a hard stability ball.
The soft, partly inflated build is the point here: it's meant to be squeezed between the knees, placed under the back, or held during core work in ways a hard, fully inflated gym ball can't be used. It ships with a straw for inflation and an exercise guide, though buyers should hold onto that straw specifically, since a couple of reviewers had trouble getting a replacement from the company. The latex-free build matters for anyone with a latex allergy, not just as a marketing point.
- 8.5 inch diameter
- 340 lb weight capacity
- Phthalate- and latex-free PVC
- Includes exercise guide
Who it's for
Suits Pilates practitioners, physical therapy patients, and anyone doing spine or pelvic floor work who wants a soft, latex-free ball. Less relevant for someone who wants a large, fully firm stability ball for seated balance training.
What buyers say
From Amazon customer reviews.
Reviewers consistently praise the build quality, easy inflation, and latex-free material, with one comparing it directly to the ball used by their physical therapist at a lower price. The recurring complaint is the small inflation straw: one buyer lost it and said the company gave no clear way to get a replacement, and another noted the plug doesn't seat fully.
Strengths and trade-offs
Drawn from this product's published specifications.
- Latex-free, safe for latex allergies
- Soft enough to use between knees or under back
- Easy to inflate and holds air well
- Small inflation straw is easy to lose
- Air plug doesn't always seat fully per one review
Performance notes
The ball inflates only partway by design, staying soft enough to compress between knees or under the back rather than staying rigid like a standard exercise ball. Air is added or released through a small tube, and multiple reviewers found it easy to inflate but flagged the included straw as easy to lose with no clear replacement process from the company.
Specifications
| Brand | SISSEL |
|---|---|
| Model | 34115 |
| Dimensions & fit | |
| Item Weight | 7.4 ounces |
| Item Diameter | 8.7 inches |
| Size | 8.7 inches |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type | Thermoplastic Polyurethane (TPU) |
| Construction Type | PVC |
| Color | Blue |
| Included components | |
| Unit Count | 1 |
| Included Components | SISSEL® Pilates Soft Ball | Yoga Gymnastics Exercise Therapy Workout | 22 cm, Blue |
| Other details | |
| Sport Type | Pilates |
| Ball Type | pilates ball |
| Number of Items | 1 |
Other SISSEL exercise balls
How it compares
This product against the closest alternatives we track in exercise balls.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| SISSEL Pilates Soft Ball GrayThis product | 4.5 / 5 | 895 | 4.2 / 5 |
| Primasole Exercise Ball for Balance Stability Fitness Workout Yoga Pilates at Home Office…Primasole | 4.6 / 5 | 2,700 | 4.5 / 5 |
| ProBody Pilates Small Exercise BallProBody | 4.5 / 5 | 13,059 | 4.4 / 5 |
| Trideer Exercise BallTrideer | 4.6 / 5 | 5,804 | 4.4 / 5 |
| Exercise Ball - Yoga Ball for Pilates & Fitness - Birthing for Pregnancy, Stability…Exercise | 4.7 / 5 | 2,300 | 4.4 / 5 |
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Questions about the SISSEL 34115
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the SISSEL Pilates ball latex-free?
Yes, it's made from PVC that is both phthalate-free and latex-free.
What size is the SISSEL Pilates Soft Ball?
It measures 8.5 inches in diameter and supports up to 340 pounds.
Does the ball come with instructions?
Yes, it includes an exercise guide with recommended Pilates movements for beginners and advanced users.