Flex grooves allow for natural foot flexion during activity, asics shoes for pickleball.
"Update your workout in the all-new Nike Womens Flex Supreme TR 5 training shoe.The minimal design provides support, lock down and flexibility only where you need it most.Integrated tongue construction for comfortRubber pods in the heel and forefoot offer durability and tractionFlywire cables in the forefoot integrate with the laces for a dynamic fit."The external midfoot bridge enhances arch support durability, asics ortholite shoes.