Flatline Training Barefoot Shoes For Runners And Athletes Ultra Flexible Minimalist Design Breathable ResponsiveFlatline is the new barefoot training shoe designed for athletes who want a natural, connected feel during workouts. Built for runners, gym enthusiasts, and functional trainers alike, it emphasizes ground contact and unrestricted foot movement. Product Type: Barefoot training footwear that prioritizes natural movement and ground feedback Design Intent: Minimalist silhouette to encourage toe splay and footiflex without crowding the foot Intended Use: