Weightless, supportive, and confident underfoot, Norvan SL 3 brings improved durability and fit while maintaining its status as one of the lightest trail running shoes ever made. The highly abrasion-resistant Matryx® Micro upper delivers outstanding flex and breathability for minimal weight. A knit collar seals out debris and integrates with the tongue for a fit that wraps the foot, and the surefooted Vibram® Megagrip™ outsole's LITEBASE technology delivers durable performance while shedding every gram possible.