We've traded in cozy sweaters for crop tops and bikinis, so start drawing your navel toward your spine. Here are nine great exercises for toning your midsection. Remember, the ol' Pilates trick of pulling the belly button in ensures that you're working the deepest ab muscle (known as the transverse), which helps create a sleek midriff.
The exercises are divided into three sections: upper abs, obliques, and lower abs. You can approach this workout three different ways: pick one exercise from each section and perform two to three sets, pick two exercises from each section and do one to two sets, or for the ultimate boredom buster, do one set of all nine exercises.