LA Baby 3-inch Mini/Portable Crib Mattress has box edge construction, is white in color, triple laminated and tear resistant. Our outer cover is waterproof, anti-microbial, phthalate free, non-toxic, non-allergenic, stain resistant and easy to keep clean with mild soap and water. The 3 inch thick mini/portable crib mattress has box edge construction and an overall size of 24" X 38' X 3". Proudly made in the U.S.A from domestic and imported sources. 1 year warranty.