Amazon.com has a Sennheiser MX75 Sport Line Stereo Headphone with Twist-to-Fit System for $30.12 with Free Shipping.
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- Innovative holding system (Twist-to-fit) ensures best possible fit n
- Powerful neodymium magnets for detailed sound n
- Sweat and water resistant n
- Extremely rugged earphones and cable n
- Comes with ear adapter set, cable clip and flexible vinyl carrying case