XT-4 OG RED VIPER Size:6.5 UK Fine-tuned for demanding endurance races

Fine-tuned for demanding endurance races and runners

A hoodie built for digging deep and accelerating in chilly weather

Once you unfold the sleeve

reinvented and upgraded with a stride-stabilizing Agile Chassis System™ for a progressive adaptation of a true trail icon

XT-4 OG RED VIPER Size:6.5 UK Fine-tuned for demanding endurance racesMimicking the cunning and dynamic movements of the viper through sharp red accents and a slick profile, this XT 4 OG Red Viper celebrates the Year of the Snake in style. Snakeskin patterning on the lining and insole gives this trail legend new energy while it maintains all the best performance tech of its day.