Online Exclusive. Nike's OG Metcon has been given a comfort upgrade with these women's Metcon Flyknit 3 trainers from Nike. In a Wolf Grey colourway, these trainers are built with an ultra-breathable Flyknit upper, which is flexible yet supportive. They feature a stretch-woven sleeve for a sock-like fit and a tonal lace up fastening with Flywire tech for a locked-in feel. With synthetic overlays for extra durability, they're equipped with a drop-in midsole, which combines with a firm rubber heel for comfort and stability during training. With a grippy sole with Flex grooves for a natural feel, these trainers are finished with signature Nike branding, including the Swoosh to the sidewalls.