Nike Adult Slim Waistpack 3.0 Distraction free storage. The Nike Slim 3.0 Waispack is the perfect accessory for carrying small items on your run. With its slim, lightweight design and stretchy, adjustable belt, this waistpack is made to move with you in comfort. The pocket is expandable to fit your small essentials. Style code: 100.3694.082B Nike Adult Slim Waistpack 3.0