Preorder Now for 9/7/26 delivery It's Back...but Better. We have optimized all aspects of Performance. This is the long awaited update to the GS:TAM, inspired by the trails on the majestic Mt. Tam in Northern California. The GS:TAM 2 is the ultimate trail equipment for long distances. Precision fit is paired with maximum comfort and responsiveness to propel you across the trail faster. Updates include: ATPU Beaded Foam Proprietary drop-in midsole blend elastomer (removable) GS:TAM 2 is not compatible with custom insoles Updated PerformFit™ Wrap activated by dual BOA® Fit System featuring multidirectional Li2 Michelin Fiberlite Outsole - 6.5mm lugs Spacer mesh upper with strategically placed high-tenacity fiber Ten percent of all profits are given as a direct donation to our athletes' chosen outdoor organizations.