Reebok x Cottweiler Reversible Track Jacket Sahara from the Spring Summer 2018 Collection. Reebok and Cottweiler join forces once again releasing a new collection. Included in the drop, the Reversible Track Jacket features one way zip closure, 2 zip pockets on front, graphic prints on front, sleeves and back, elastic cuffs and hem. One Way Zip Closure. 2 Zip Pockets on Front. Graphic Prints on Front, Sleeves and Back. Elastic Cuffs and Hem. 100% Nylon.