On Cloudmonster Void Trainers - Grey - UK 3.5

The On Cloudmonster Void Trainers are primarily designed for road running. Their cushioning and tread are optimized for pavement and asphalt, and they may not provide adequate grip or protection for uneven trail surfaces.

Please refer to the sizing chart provided by the retailer or consult On Running's official sizing guide. The UK 3.5 is a specific measurement for women's footwear.

Yes, the max-level cushioning and energy return technology make these shoes well-suited for marathon training and even race day for runners who prefer a highly cushioned and propulsive ride.

The Cloudmonster series is distinguished by its maximalist cushioning approach, offering a softer landing and more energy return compared to many other On models which often focus on a lighter, firmer feel.

For optimal performance and injury prevention, it is generally recommended to replace running shoes every 300-500 miles (approximately 500-800 kilometers), or when you notice significant wear on the outsole or a noticeable decrease in cushioning.

The 'Void' designation typically refers to a specific colorway or aesthetic of the shoe, in this case, a grey color. It does not indicate a functional difference from other Cloudmonster models of the same series.

The advanced cushioning and Speedboard® may require a short break-in period. Wear them for shorter runs initially and gradually increase distance.

Ensure laces are tied securely using a double knot. Consider replacing laces with a grippier material if the issue persists.

Check the lacing pattern; try loosening the eyelets around the midfoot. If discomfort persists, consider using an aftermarket insole that offers different arch support.

Ensure the shoes are not excessively worn. While durable, running shoes have a finite lifespan. Check for significant compression in the midsole foam.