"Exactly as described, comfortable."
Flexible for everyday wear.
Flexible silicone offers a lightweight alternative to a metal band. A ring is not protective equipment; remove jewellery whenever your activity or workplace requires it.
Almost weightless
Flexible silicone has a soft, lightweight feel. Choose a comfortable fit and remove the ring if you notice irritation.
Choose when to wear it
Silicone rings can catch or tear. They do not guarantee protection from injury. Follow workplace, machinery and activity rules, including removing all rings where required.
Faults replaced
A comfy everyday or backup ring. Manufacturing faults: we'll replace it, and a fresh colour is always easy to add.
Every ring arrives ready.
- Branded pouchSlim Helix pouch — toss it in the gym bag or glovebox.
- Online fit guideSilicone is flexible — measure at home with a string or paper strip, our guide walks you through it in two minutes.
- Manufacturing faultsManufacturing faults: we'll replace it.
- Free exchange*First size exchange has no exchange fee on eligible rings priced $100 or more; $10 under $100 or for a second exchange. Sale exclusions apply. Return postage is your responsibility.
The specs.
- Material
- Silicone
- Width
- 9mm
- Colour
- Blue
- Available sizes
- 7 / N.5 – 14 / Z+3
- Model
- SIR056-HOLLOW-NAVY
Not sure of your size?
Silicone is flexible — but the right size makes a real difference for comfort. Three ways to check before you order.
The details.
The Hollow Square Navy silicone ring features a squared profile with hollow construction in a deep navy tone, masculine, minimal, and built for active wear. Made from medical-grade silicone, it is sweat-proof and waterproof. The unique squared exterior gives a strong, angular look while hollow channels keep the ring lightweight. Silicone rings flex with your hand, so they stay comfortable through training, sport and work. A distinctive ring for men who want something beyond the standard round band.
What 1 owners actually say.
Average rating 5.0 / 5 across 1 verified reviews.
Customer reviews
Perfect
Exactly as described, comfortable.
Ring size guide.
Measure the inside diameter of a ring that already fits. Print the chart 100% scale or use a tape to check inner circumference.
| AU / UK | US | Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| G | 3½ | 14.1 | 44.2 |
| H | 4 | 14.5 | 45.5 |
| I | 4½ | 14.9 | 46.8 |
| J | 5 | 15.3 | 48.0 |
| K | 5½ | 15.7 | 49.3 |
| L | 6 | 16.1 | 50.6 |
| M | 6½ | 16.5 | 51.9 |
| N | 7 | 16.9 | 53.1 |
| O | 7½ | 17.3 | 54.4 |
| P | 8 | 17.7 | 55.7 |
| Q | 8½ | 18.2 | 57.0 |
| R | 9 | 18.6 | 58.3 |
| S | 9½ | 19.0 | 59.5 |
| T | 10 | 19.4 | 60.8 |
| U | 10½ | 19.8 | 62.1 |
| V | 11 | 20.2 | 63.4 |
| W | 11½ | 20.6 | 64.6 |
| X | 12 | 21.0 | 65.9 |
| Y | 12½ | 21.4 | 67.2 |
| Z | 13 | 21.8 | 68.5 |