Vivobarefoot Men's Primus Lite Knit in Obsidian brand-Red Wing All Super Birki models are

All Super Birki models are certified in accordance with EN ISO 20347:2012 OB E (SRC category)

5 39 25 6-6

two component PU/TPU outsole

5 51 34 17 - 16

Odor- and wrinkle resistant

Vivobarefoot Men's Primus Lite Knit in Obsidian brand-Red Wing All Super Birki models areAll sales are final. Returns for store credit only. The Primus Lite Knits flexible knit upper, made with recycled plastics, adds even more mobility and agility to the beloved Primus Lite. The same 2mm Primus outsole, with an Active Ortholite Performance Insole made of 98% recycled PU foam, makes it perfect for active lifestyles and controlled workouts. PRODUCT INFO PRIMUS OUTSOLE Get as close to the ground as possible. ORTHOLITE INSOLE The Ortholite