Introduction
The Speedo Men's Endurance+ Solid Jammer is engineered for competitive swimming and frequent pool use. This swimsuit features Speedo's exclusive Endurance+ fabric, designed for superior durability and resistance to chlorine. Its athletic fit provides optimal support and hydrodynamics, making it an ideal choice for training and performance.

Image: Front view of the Speedo Men's Endurance+ Solid Jammer Swimsuit in Team Navy.
Sizing and Fit
Selecting the correct size is crucial for the performance and comfort of your Speedo Jammer. Competitive swimwear is designed to fit snugly to reduce drag in the water. If you prefer a more comfortable fit for casual use, consider sizing up.
Size Chart

Image: Speedo Men's Competitive Swim Fit Chart, providing guidance on competitive size based on pant size, alpha size, chest, waist, and hip measurements.
Refer to the chart above to match your body measurements (chest, waist, hip) with the recommended competitive size. For example, a person with a 32-inch waist might wear a competitive size 30 for a snug fit.
Wearing Instructions
To wear the jammer, pull it up smoothly over your legs. The inner drawstring allows for a custom and secure fit around the waist. Adjust the drawstring as needed to ensure the jammer stays in place during activity without causing discomfort.

Image: Close-up of the inner drawstring being adjusted for a custom waist fit.
Operating (Performance Features)
The Speedo Endurance+ Jammer is engineered with advanced features to enhance your swimming experience.
Endurance+ Fabric Technology
Constructed from 50% Polyester and 50% PBT, the Endurance+ fabric is ultra-chlorine resistant, designed to last 20 times longer than conventional swimwear fabrics. This material maintains its shape, color, and elasticity even with frequent exposure to chlorinated water. Its four-way stretch technology provides a body-hugging fit, excellent shape retention, and soft comfort, while also being lightweight and quick-drying.

Image: Detail of the durable, low-stretch Endurance+ fabric.
Design for Movement and Hydrodynamics
The jammer features a mid-thigh height with a trim leg opening that hits just above the knee, optimizing hydrodynamics. The high-compression fit below the waist provides hip-hugging support, reducing drag and allowing for a full range of motion during strokes.

Image: Rear view of the Speedo Jammer on a model, showcasing the fit.
Official Product Video
Video: This official Speedo video highlights the key features and benefits of the Endurance+ Jammer, including its durable fabric, fit, and performance advantages.
Maintenance
Proper care extends the life of your Speedo Jammer and maintains its performance characteristics.
- Hand Wash Only: Always hand wash your swimsuit in cold water immediately after use.
- Rinse Thoroughly: Rinse out all chlorine or saltwater.
- Avoid Harsh Detergents: Use a mild soap if necessary, but avoid strong detergents or bleach.
- Do Not Wring: Gently squeeze out excess water.
- Air Dry: Lay flat or hang to dry in the shade. Avoid direct sunlight and high heat, such as dryers, as these can damage the fabric.
- Storage: Store in a cool, dry place.
Troubleshooting
Fit Feels Too Tight or Loose
Competitive jammers are designed for a very snug fit. If the suit feels excessively tight or restricts movement, or conversely, feels too loose and creates drag, re-evaluate your size using the provided size chart. Ensure the drawstring is properly adjusted for a secure waist fit. Body shape and personal preference can influence fit; consider trying one size up or down if the current size is uncomfortable.
Fabric Degradation or Fading
While Endurance+ fabric is highly chlorine resistant, improper care can still lead to premature wear. Ensure you are consistently following the 'Maintenance' instructions, especially hand washing and air drying, to maximize the lifespan of your swimsuit.
Specifications
| Brand | Speedo |
| Model Number | MENDJAMMERUSAA |
| Material Type | Polyester |
| Fabric Type | 50% Polyester, 50% PBT |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Fit Type | Athletic |
| Rise Style | Low Rise |
| Apparel Closure Type | Drawstring |
| Product Benefits | Ultra chlorine resistant fabric lasts 20x longer than conventional swimwear |
| Product Care Instructions | Hand Wash Only |
| Age Range Description | Adult |
| UPC | 196555196173 |
Warranty Information
This Speedo product is covered by a manufacturer's warranty. For specific details regarding coverage, duration, and claims process, please refer to the official Speedo website or contact their customer service directly. Retain your proof of purchase for any warranty claims.
Customer Support
For additional assistance, product inquiries, or to explore other Speedo products, please visit the official Speedo store: