Made of a soft spandex they are the best option for keeping your pump secure and comfortable. Pump bands have a built in pocket for the insulin pump. Pump Bands are the answer to no more slip sliding away. The waist band keeps the pump comfortable during sports and activities. Great for sleep, biking, running and sports Insulin pump bands have a unique built in pocket to hold your insulin pump. You can wear these bands every day, under clothing, wear insulin pump bands for sports, insulin pump bands are also great for wearing with dresses.