Tracksmith session shorts, never worn, size M After a decade of delivering performance no matter the training session, our workhorse Session Shorts were ready for an upgrade. So, we rebuilt them from the inside out with comfort and durability in mind, starting with a new liner made from an Italian-sourced fabric that's so smooth, you won't even notice it. We streamlined the waistband with an integrated drawcord to reduce weight and improve comfort. And we added more storage - three internal drop-in pockets and one external zip pocket designed to limit cargo bounce. The versatility and considered details are what make the Session our best-selling shorts.