On Cloudrunner 3 - Black - UK 8.5

The On Cloudrunner 3 is best suited for daily runs and moderate training. For marathon distances, you might consider specialized long-distance running shoes that offer even greater cushioning and energy return.

Refer to the sizing chart provided by On Running. It's recommended to measure your foot length and compare it with the chart. Ensure there is enough room in the toe box.

The trainers offer some protection, but they are not fully waterproof. They can handle light rain or damp surfaces, but prolonged exposure to heavy rain may lead to wetness.

The Cloudrunner series typically focuses on providing a balance of cushioning and support for everyday running, often at a more accessible price point compared to specialized performance models.

It's generally recommended to replace running shoes every 300-500 miles (480-800 km) or when you notice significant wear on the outsole or a loss of cushioning.

The standard fit is designed for average width. If you have significantly wide feet, you may find them snug. Consider trying them on or looking for models specifically offered in wider widths if available.

Ensure you have selected the correct size. Consider trying them with different types of socks. If discomfort persists, they may not be the best fit for your foot shape.

While durable, cushioning can naturally compress with extensive use. Ensure the shoes are clean and free of debris that might affect performance. For heavily used shoes, consider replacement.

Check lacing technique; ensure the heel is properly locked into the shoe. Some users find a runner's knot can help secure the heel. If the issue persists, the shoe size or width might be incorrect.