In My Gym Bag With Karena + Katrina of Tone It Up

We're chatting with the founders of Tone It Up about the essentials that keep exercise fun, their gym style fierce and their bodies fit

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34 Photos & High Res Pictures - Getty Images

Buy Tone It Up - Love Your Body with Karena & Katrina DVD - 6 Workouts To Tone Up And Love Your Body + 2 Bonus Videos (2014) at a low

Tone It Up - Love Your Body with Karena & Katrina DVD - 6 Workouts To Tone Up And Love Your Body + 2 Bonus Videos (2014): : Movies & TV Shows

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I Did 'Tone It Up' Workouts for a Week. Here's What Happened - Motherly

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How the Tone It Up Effect is Changing the Way You See Fitness, by Jessica Collins