Cossack squats offer the ultimate twofer: tighter butt and improved hip mobility

You haven't felt the burn in until you've mastered cossack squats. Here's exactly how to do perform the move correctly, according to a trainer.

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Photo: Getty Images/Shift Undrey

16 Upper Glutes Exercises Personal Trainers Swear By for a Stronger Butt

Why your upper glutes deserve more love, and the best exercises to strengthen them.

woman doing an upper glutes exercise with an exercise band.