The Jake Gym Duffel Pack is as versatile as you. It can be carried in 3 ways to suit your style or mood, as a 1) Backpack or a 2) Duffel bag or a 3) Briefcase Mode even Made of high quality and wear-resistant 420D Polyester fabric, high storage volume and breathability is something that is a given with the Jake. 
No more smelly bags after the gym! Pain and gain should be left inside the gym. Jake has a padded shoulder strap (Duffel Mode) and backstraps (Backpack Mode) which do not put on stress on your shoulders and back after an intense workout session.