Front: Skin (rubber) Back: Skin (rubber) Made of rubber on both sides, it doesn't absorb water, so you can stay warm. The skin material is soft, allowing for free movement. It also becomes softer over the years. The rubber doesn't stretch. Putting it on and taking it off is smooth if you put water in it. I've been using it for about 2 years. Height: 162 cm (suitable up to about 170 cm) Body type: Average (neither thin nor fat) Weight: 55 kg Normally, the knees get damaged, but I wore a supporter, so there are no scratches on the knees. Excellent condition. Since it's made of rubber, it stretches and shrinks, so anyone around the same height can wear it. The abdomen area is also long. It reaches around the chest. If it fits, you can wear it as is, but if it's loose, wear thick fin socks. The name is written on the inside of the abdomen. The silver color is slightly peeled off from the inside of the waist where you step in. It's been folded for storage, but there are no noticeable fold wrinkles. In short, For divers who feel the cold, the ultimate choice is a 6.5mm wetsuit. I was diving all year round, so this is good for all seasons. In the hot summer months, I recommend wearing a rash guard on top and this 6.5mm wetsuit on the bottom. It's comfortable. It's a used item, so please refrain from purchasing if you are concerned. If the height is right, you're lucky. I'm also selling a jacket separately, so please take a look. I'm considering a set discount, so please feel free to ask.