Tested and trialed by ON's elite team of trail athletes the ON Ultra Vest 5L is a high performance ultra-lightweight vest made for training or racing. Ultralight and tough, the breathable mesh material is tailored to provide a precise fit that stays put, the patented-pending closure system allows you to adjust the vest's placement to best suit your body. Non-stretch materials minimise bottle bounce for a smooth and comfortable ride over any terrain.

This pack offers 1L of hydration between dual front-riding 500 ml Hydrapak flask. Minimalist construction strips this pack down to the bare essentials, whilst still giving you plenty of storage space.

Front pockets offer space to stash nutrition, accessories, and essentials with ease. Two stretch pockets below the flask holsters offer storage for gels, gloves, or smaller gear. Rear stash pocket gives you quick access to larger apparel and nutrition.

Model Number: 2UD30030864

Sizing

*Measure around the fullest part of the chest

Features

• Includes two 500 ml Hydrapack soft flasks
• Customisable closure system on the front for a comfortable, adaptable fit
• Dual front holster pockets for flasks
• Stash pockets on holster pocket exteriors for fast access to gels and nutrition
• Rear lower pocket for secure storage and access to apparel
• Emergency whistle
• Reflective detailing increases visibility in low-light conditions
• Weight without flasks: 127 g

Storage

• Stash pockets on outside of holsters
• Lower back pocket
• Left/right shoulder pockets
• Pack volume: 5 L

Flask Details

• Soft Flask design for easy squeeze and fluid release
• Marked volumes for measured hydration
• BPA and PVC-free
• Total volume: 500 ml

Fabric

• Main Body – 85% recycled polyamide, 15% elastane
• Pockets – 41% polyamide, 41% recycled polyamide, 18% elastane