Leg wraps have been used by militaries since ancient times, and the reason they have been passed down to this day and are still in use is probably because, after wrapping your legs, you won't experience soreness in your calves during long treks. And when you undo the wraps a few days later, your legs will feel very comfortable. They also prevent swelling and fatigue caused by blood pooling in the lower limbs.
Wrapping leg wraps is also widely used in outdoor activities. Professional hikers always wrap their legs when going on trips. Especially in high-altitude jungles, wrapping your legs can prevent venomous insects and leeches from crawling up your pant legs to bite and suck blood, and it can also effectively protect against scratches and tangles from thorny branches. If a hiking companion suffers a fracture and a triangular bandage first aid kit is not effective, you can use the leg wrap cloth to help immobilize the bone. When encountering steep cliffs that require climbing or descending, several leg wraps can be tied together to form a rope to help you get through the tough spots. If a fellow hiker is injured and there’s no stretcher available for evacuation, you can cut two long and two short sticks and use several leg wraps to create a makeshift stretcher. If you need to tie something down, leg wrap cloth makes the best binding rope.
Wrapping leg wraps is actually quite simple. The size can vary and there is no strict standard—it's just a long strip of cloth (canvas works best, but a sturdy common fabric is fine too), with one end flat and the other end forked into two straps. The forked end should be sturdy. The width can be ten centimeters or more, and the length can be anywhere from one and a half to two meters. To apply the wrap, start with the flat end at the shoe and wrap it smoothly around the foot and leg. Every one or two turns, you can flip the wrap to ensure it lies flat against the leg as you continue wrapping upward to the back of the calf. You should do this standing up, with moderate tightness—too tight and you won’t be able to walk, too loose and it won’t be effective. A well-wrapped leg should tightly seal the top of the shoe and stay secure even after walking for a long time.