Reebok - Nano X4. Color White/Black/Gum. On sale for $139.99. MSRP $150.00.. 3.9 out of 5 stars+8Brand NameReebokProduct NameNano X4ColorWhite/Black/GumPrice$139.99MSRP: $150.00Rating4Rated 4 stars out of 5(135)