A core mesh Biggest Loser performance shirt proves that 1970s mesh is back in a much cooler way and is even updated with hidden back MP3 pockets! Keep dry during the most strenuous workouts even as your own trainer pushes you to the limits. A Biggest Loser workout shirt in core performance mesh is a 100% bright blue polyester with vented panels and a roomy fit, give your body extra room to breathe in just the right places.
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