• DOUBLE LAYER BREATHABILITY DESIGN: The mattress underlay is designed with double-layer breathable holes, the surface is large honeycomb breathable holes, and the bottom is 3D mesh breathable holes, air circulation keeps your mattress dry
• POLYPROPYLENE MATERIAL: The Under mattress pad is made of polypropylene material, three layers of fiber fabric, can support more than 3,000 pounds of weight, strong resilience, not easy to deform. Breathable and can be reused many times
• LARGE SIZE AND CUTTABLE: The size of our RV under mattress ventilation is 82.67in L*59.05 in W*0.3 in H, the large size can meet your daily needs. The size of the RV liner can be DIY cut to fit Queen, King and Twin mattresses
• MULTIPLE USES: Our hypervent aire-flow mattress underlay can be widely used in bedrooms, RVs, boats, and campers to keep away from moisture and keep your mattress dry. Can be used in all kinds of weather, keep your underbed airflow and stay clean
• LIGHTWEIGHT AND EASY TO INSTALL: Our mattress underlay is very lightweight, foldable and portable, easy to install, just lay it on the bottom of the mattress and use it, bring you a comfortable sleeping experience