Wheelie duffel bags combine a duffel’s soft shape with wheels, so the same bag can be carried or rolled. The range covers SG, Kookaburra, Gray Nicolls, GM, Shrey, MRF and SS, from $39 for the SG ClubPak Plus trolley bag to $159 for the Focus Players Edition. Kookaburra’s WD series and SG’s Smartpak and Jaffa lines anchor the middle of the range.