The competition for the title of the city's most obsessed-over barre class is intense--but one of the stalwarts, Core Fusion Barre by Exhale, will always be at the top of anyone's list. Tone and sculpt your body all over with this complimentary Core Fusion at Athleta Flatiron for the perfect lunch hour sweat session. You might become a convert. Free Core Barre Class Details
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