On Ultra Vest Pro Unisex

The On Ultra Vest Pro is developed for the most demanding trail runs and has been tested and approved by elite athletes. This next-generation trail vest offers a snug fit, optimized storage, and smart details for maximum performance in mountainous terrain. The vest comes with two BPA-free 500ml Hydrapak® flasks, ensuring you always have sufficient hydration on hand. The updated fit prevents bouncing, while a removable, seam-taped dry pack with a water-resistant zipper keeps your gear safe and dry. Strategically placed front and back pockets provide quick access to essential items such as nutrition or your phone. A safety whistle, extra loops, and modular attachment points—such as for the Ultra Quiver—make this vest complete for technical and long trails.

The most important features of the On Ultra Vest Pro at a glance:

• Includes 2 Hydrapak® Soft Flasks of 500 ml
• Removable waterproof dry pack with taped seams
• Optimized fit to prevent bouncing
• Front and back pockets with zippers for quick access and extra storage space
• Large side pockets for food or gear
• Safety whistle included
• Extra loops and modular attachment for accessories