You can sit on it at work, but take this ball – heavier than a standard physio ball and cloaked in antimicrobial material – into your gym for great core workouts aided by the extra density. [$225; technogym.com]
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
The Interpreters We Left Behind
The Rise of Cyclocross
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