ARB SDS200 SkyDome Sandstone 84" x 35.5" x 55" Double Swag Heavy duty 820 grams per square meter PVC base with 75 millimeter high return for protection against water ingress Welded corners and PVC anchor tabs prevent water wicking through seams The 1800L dome design incorporates heavy duty 450 grams per square meter water and rot proofed canvas tested to Australian standards All doors and windows feature YKK zips, while the rain gutter is incorporated into the main entry door to inhibit water ingress Comfortable 75 millimeter corrugated foam mattress with anti-microbial additives and a non-rustling machine washable cotton cover