This is the DOD SOTONE NO SASOI L. I purchased it new and used it 2-3 times last year for family camping. There is some slight soiling on part of the storage case due to storage, but since I used a separate sheet on top of the mat, the mat and dedicated sheet are relatively clean with no noticeable stains or marks. The inflation mat's securing straps use one non-genuine part. Popular model: SOTONE NO SASOI Type: Inflating mat Features: Double size (for two people) Thickness: 5-8cm