Available sizes: EU XXL, EU S, EU M, EU L, EU XL. Jack & Jones Tracksuit bottoms JPSTGORDON Available in men's sizes. by Jack & Jones. For sports or a relaxing day, these green joggers designed by Jack & Jones are the perfect companion. Fans of urban style must have them! A model that is synonymous with relaxation! Features two side pockets and an elastic waistband for a regular fit.