UltrAspire Vest

Running vests from 2L minimalist designs to the 10L Legacy 3.0. Spry 4.0 holds 3.5 liters at 213g; Legacy 3.0 weighs 318g at 10 liters. Front soft flask pockets and rear reservoir compatibility standard. Emphasizes close body fit and minimal bounce for technical trail running.

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Jeff Browning

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Hydration vest sponsor

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Last updated March 22, 2026