Not all compression socks are created equal! This product is a prime example of that. It’s made using yarns created from recycled fishing nets and consumer waste, thanks to an environmental brand called Econyl. It's then carefully crafted in a top-notch sock manufacturing facility in Italy and brought to you to improve your day-to-day training. It's designed to provide excellent support and comfort for your calf and soleus muscles, ensuring a comfortable and supportive footbed for when you are active. It’s also designed with a graduated compression that increases blood circulation in the lower leg. This means they can be advantageous for recovery after a hard session, as well! Features: There are some nice unexpected features as well, like an enhanced arch support and a 3D tongue guard to reduce any abrasion. Enhanced arch support 3D tongue guard Anatomically designed footbed Certified graduated compression All of their garments are made with sustainability in mind. They use some of the most eco-friendly materials and technologies available, such as recycled yarns, dye-free processes, and biodegradable components. Plus, they provide traceability for full transparency. Size Guide: In EU sizing: XS: 34-37 S: 37-39 M: 39-41 L: 41-43 XL: 43-45 XXL: 43-45