Shakers are a welcome addition to the equipment of trail runners and hikers. These handy bottles are specially designed to quickly and easily prepare and mix drinks on the go. Whether you want to mix protein shakes, sports drinks or energy powders, shake cups make it easy. They feature a leak-proof lid and a handy shaking ball to mix ingredients evenly. Measurement markings on the side allow you to measure accurately, even when you're outdoors. Whether you need a quick energy boost or want to reward yourself with a refreshing shake after an intense trail run, these cups are the ideal companions on the go.