it provides underfoot confidence and safety on all types of hiking terrain

One-piece heel construction with external TPU heel counter for additional support & structure

Internal heel counter for additional support that helps keep the back of the foot locked in place

lighter weight construction

the classic model comes in a particularly cozy version with genuine shearling and a statement buckle

ADRENALINE GTS 23 birkenstock it provides underfoot confidence andNewly updated with lighter cushioning, the men's Adrenaline GTS 23 offers a perfect balance of support and softness that results in a smooth ride for miles at every speed. Lace up and find out for yourself why these men's running shoes have been runner favorites for over twenty years.