On Running Cloudultra Pro Running Shoe - Women's

Built for women pushing ultramarathon distances on technical terrain, the Cloudultra Pro is our pick when mileage and vertical both get serious. The dual-layer Helion HF midsole pairs with a fiberglass Speedboard to give you real energy return without sacrificing stability on rough ground. The Leno weave upper moves moisture out fast — a big deal in Southern heat.

• Dual-layer Helion HF hyperfoam midsole delivers cushioning and energy return over long efforts without packing out
• Redesigned Missiongrip outsole with updated lug geometry bites into wet roots, loose dirt, and rocky trail surfaces
• Leno weave upper is breathable and quick-drying — keeps feet comfortable through heat, humidity, and creek crossings
• Reinforced fiberglass Speedboard adds propulsion through the toe-off, reducing fatigue on sustained climbs and descents
• Engineered rocker geometry and 6mm drop promote a natural, efficient stride across technical terrain at ultramarathon pace