ULTRASPIRE RUNNING VESTS AND HYDRATION PACKS

The 5 litre Bronco is the smallest and lightest option for training and racing with a compact load. The 6 litre Momentum 3.0 suits runners who prefer bottles carried low at the rear. The 12 litre Big Bronco provides considerably more storage while remaining very light, while the 14 litre Zygos 6.0 provides higher-capacity storage with extensive access to equipment on the move. The 20 litre Traverse provides the most capacity for extra-long ultras and more substantial kit.

The Zygos 6.0 is a 14 litre high-capacity race vest suited to long ultras and substantial mandatory kit, with extensive storage accessible on the move. It includes two 800ml soft flasks and can also take up to a 2 litre reservoir.

The Traverse increases capacity to 20 litres for extra-long ultras, fastpacking and larger loads, while retaining a close-fitting vest-style design and extensive accessible storage. It accepts front soft flasks or bottles and up to a 2 litre reservoir. Choose the Traverse when you genuinely need the additional carrying capacity; otherwise the Zygos 6.0 is the more compact option.

The range runs from the 5 litre Bronco and 6 litre Momentum 3.0 for compact loads, through the 12 litre Big Bronco and 14 litre Zygos for more substantial ultra running kit, to the 20 litre Traverse for extra-long events and larger loads. Capacity should be based on the equipment you actually need to carry rather than race distance alone.

This depends on how you prefer to drink and where you want the weight carried. The Momentum 3.0 is designed around bottles carried low at the rear, while the Zygos 6.0 includes front soft flasks and can also accept a rear reservoir. The Traverse provides front hydration storage and a dedicated rear reservoir compartment. Other models use different arrangements, so check the individual product specification for included hydration and compatibility.