Ultra light and still withstand the excessive abuse I've put them through. For less than $25 I got way more than I expected. I use them for work because I need to have non-slip shoes and my feet and back feel better when I wear "minimal" style shoes. Will definitely recommend them and buy a second pair for outdoor activities. The only thing I don't like is the high end look of the material. Definitely recommend them. To update. Just washed them for the first time. I threw them out in the cold with my work clothes and I have to say they impressed me even more. They came off well and the non-slip soul returned to its original grip. Definitely a great find.