There is one spot that is avoided, but there are no snags and there are no problems with use. I noticed it during the inspection for the photo shoot. Please check photos 6, 7, and 8. The 8th photo was taken by pushing from behind so that the avoidance can be seen. It is flat when the mat is laid straight. About Product Features The high-density cushion absorbs impact in all mat exercises such as yoga and Pilates, protecting joints and muscles. With its unparalleled grip, you can feel a firm sense of stability even during poses. The closed-cell surface treatment prevents moisture such as sweat from penetrating, preventing bacteria from breeding inside the mat. The dot processing on the back (Manduka patent technology) prevents slipping and provides stability. Size and Material Standard: Width x Length 66cm x 180cm / Thickness approx. 6mm / Weight approx. 3.4kg / Diameter when rolled approx. 13cm [Material] PVC (polyvinyl chloride) [Country of Origin] Germany