Yes, the Aeris Muvmat is supposed to slip. Don't worry, the anti-slip pads on the bottom stop when you put weight on the mat. When you stand on the Aeris Muvmat, it won't slide anymore. As soon as you take the weight off the mat, it "slides". This way you can easily move the mat to the side. If you want to secure the mat additionally, we recommend the use of an anti-slip grid. You can get such a grid in any builder's store.