Unisex On Cloudboom Strike LightSpray©

Outfitter's Tip: this is a UNISEX-SIZED shoe. Men's sizes are shown — women should order 1.5 size below their standard running shoe size. For example: for a women's size 10 shoe, order a size 8.5.

Run in On's fastest shoe yet. The Cloudboom Strike LS is built for race day with a carbon fiber Speedboard, dual-layer Pebax midsole and a LightSpray upper that weighs almost nothing. The result is a shoe that's as technically advanced as running footwear gets right now. If you're toeing a start line and want every advantage a shoe can give you, this is it.

Details

• Upper: On's LightSpray technology is genuinely unlike anything else on the market. A single 1.5 km filament is spun by robot into a seamless, elastic mesh upper—no laces, no seams, no hot spots. At just 30 g, it's the lightest upper On has ever made. It fits like a second skin, breathes well and moves with your foot rather than against it. It also happens to emit 75% less CO2 than On's other premium uppers—fast and responsible.
• Midsole: Two layers of Helion HF hyper foam sit underfoot, delivering the kind of energy return and impact absorption you need to feel strong in the later miles of a race. Sandwiched between those layers is a pre-shaped carbon fiber Speedboard that loads and releases with each stride, adding a powerful forward propulsion that makes fast paces feel more sustainable.
• Outsole: Ground contact is maximized in key areas for better traction at race pace. When you're pushing hard through a turn or opening up your stride on a straightaway, the outsole holds its grip and keeps you moving quickly.