These mats are much more "sticky" than the average mat even when I am sweating from a hot practice. They are also thicker and can be purchased in a longer version (good for tall people and angle or lunge poses). Some people are bothered by the rubber smell - I hung mine over a rod for a week and it seems fine. The sustainability was important to me too - a natural product helps me feel more connected to the world than a petroleum product. I recommend these to my students and to you too!