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The Speedo Jammers - Hyperboom Logo/Bolt will have you dial up your swim style in the signature Hyperboom logo print. Streamlined in classic black, the sporty Hyper Boom Jammer features a stylish spray-paint effect Speedo Boom graphic. The sleek design includes a rubberised liner and integral support for enhanced comfort, plus a drawstring waist for a tailored fit. Designed to be durable and better for the environment, it's made from Speedo ECO Endurance+ fabric, which is 100% chlorine resistant, quick-drying and made from 50% recycled materials.
Speedo Swimwear the worlds leading swimwear brand. Speedo is passionate about life in and around the water, creating revolutionary new technologies, designs and innovations.
| SPEEDO TRAINING SWIMWEAR MENS SIZE CHART | ||||
|---|---|---|---|---|
| AUS Size | Alpha | Waist | Chest | GB Size |
| 10 | XS | 70-75cm | 80-90cm | 30 |
| 12 | S | 75-80cm | 85-95cm | 32 |
| 14 | M | 80-85cm | 90-100cm | 34 |
| 16 | L | 85-90cm | 105cm | 36 |
| 18 | XL | 90-95cm | 110cm | 38 |
| 20 | 2XL | 95-100cm | 115cm | 40 |
| 22 | 3XL | 100-105cm | 120cm | 42 |
| 24 | 4XL | 105-110cm | 125cm | 44 |
| Updated July 2025 | ||||
