Product Positioning: Indoor Fitness & Dry Outdoor 1. Official Product Statement Designed for Precision, Not for Wading. Maison FANCYLEE Bionic Trainers are specifically optimized for deadlifts and squats to provide ultimate stability and ground feedback during high-intensity training. While the knit upper offers premium breathability, this model features a closed-sole construction without drainage holes to maximize support and protection. This gear is intended for indoor gym performance and dry outdoor leisure, and is not recommended for swimming, wading, or deep-water activities. About This Product Five-Finger Design for Natural Grip: The unique separated five-toe construction provides a true barefoot feel, allowing your toes to splay naturally for enhanced balance and a superior tactile connection to the ground. ⚠ ATTENTION: PRO-FIT NOTICE Measure Your Feet: To ensure peak performance for deadlifts and squats, please measure your actual foot length (mm) before ordering. Do not select based on your regular casual sneakers. Specialized Sizing: We have optimized our sizing for a professional fit. For example, our EU 39 is equivalent to US Men's 8 / UK 6. Please strictly follow the provided conversion chart. Toe Splaying: Five-finger shoes are designed to fit snugly. If you are between sizes or prefer a looser feel, we recommend choosing one size up. Zero-Drop Sole for Power & Stability: Engineered with a professional zero-drop profile to ensure a neutral stance, these shoes are optimized for deadlifts and squats to provide ultimate stability and ground feedback during heavy strength training. Breathable Performance & Minimalist Aesthetic: Crafted with high-breathability knit fabric, these shoes keep your feet cool and dry even during intense gym sessions, blending a sleek minimalist style with functional performance Anti-Slip Bionic Outsole with Wide Toe Box: The bionic rubber outsole delivers exceptional traction and durability, while the wide toe box design prevents pinching, providing a secure and comfortable fit for high-intensity training. Inclusive Sizing from 36 to 46: Specifically designed to accommodate a wide range of sizes from EU 36 to 46, these professional-grade bionic trainers are the ultimate gear for CrossFit, powerlifting, and minimalist movement enthusiasts.