MadMax 
1 - Machine linking - to alleviate rubbing irritation and blisters
2 - Flexible foot-break - to fit foot perfectly and reduce bunching
3 - Mesh zone - to provide well-ventilated performance
5 - Support zone - to use Lycra rubber on ankle or arch to fit your foot and no slippage
6 - Y-Heel - a bigger heel zone for maximum fit and comfort
7 - Terry pad - to provide warmth and protect foot against concussion and abrasion
9 - Reinforced Zone - to add nylon thread on specific area to enhance durability abrasion and resistance
