Skybound's Premium series trampoline mat features UV-protective sun guards utilizing an innovative approach to protecting against long-term sun damage. The sun guards on the Platinum series mats shielded critical areas of stitching, which connects the V-Rings to the mat, from harmful UV Rays - usually attributed to destroying the fabric and dislodging springs. Skybound's Premium Series mats feature heavy-duty V-Rings constructed with the thickest, strongest gauge steel, and engineered to be able to withstand the pressures of heavy-load jumping. Standard V-Rings are thinner and weaker. These V-Rings are then heavily reinforced with 10 Rows of Heavily Reinforced stitching to limit the chance of failure due to fraying and spring disconnections, allowing the Mat to support more weight and a lot more force.