Here at OLIE, we wanted to find the perfect balance between support and compression. The reason for this is that we wanted enough support for your knees and wrists while you are moving around, but not too much that you lose stability or place too much pressure on your joints with it being too squishy. We began carefully sampling different thicknesses and various mat compositions, all in the quest for the perfect mat. We think we got that balance just right! You'll have to let us know.. OLIE mats are 5mm thick and weigh 2.85kg (approx 6 pounds and 2oz for our US fam)