Built for CrossFit training, the women’s Reebok Nano 9 ‘Grey’ makes use of a neutral color scheme on its breathable Flexweave upper, which is composed of fibers arranged in a figure-8 configuration for strength and flexibility. An interior bootie delivers a snug, comfortable fit, while the resilient midsole is encased in a semi-translucent rubber cage for added stability and support. Underfoot, a grey rubber outsole is fitted with flex grooves for enhanced traction.