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Built to push limits
Massive side pockets provide quick access to essentials and are compatible with UltrAspire hydration components
and effective moisture transportation
letting you easily switch between a full‑frame setup for maximum coverage and a half‑frame configuration for a lighter
it’s running with purpose
UltrAspire 1L SoftFlask Sea to Summit Built to push limitsThis collapsible SoftFlask, developed by UltrAspire in collaboration with HydraPak, introduces a unique shape and carries 1 liter of fluid that is engineered for long distance performance. The 42mm locking cap prevents leaks while maintaining a low profile silhouette that reduces body contact when used. Its flexible shape allows the SoftFlask to slide easily in and out of the side pockets of the Traverse and Purist. This 1 liter SoftFlask is also
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