Note: Owens Dog Box Extreme Weather Insulation Package option must be ordered with dog box so that it can be installed at the time of build! Extreme Weather Package Option for Owens Dog Boxes. This extreme weather insulation is sandwiched between the box and the plastic corrugate liner. With a calculated R-Value of R38, you can keep your dog comfortable in the summer and warm and protected in the winter! Details: Extreme Weather Package / Must Be Ordered With Dog Box Calculated R-Value of R38 Thickness: 0.25 Inches For Owens Dog Boxes – Single, Double, and Triple Compartments Owens Products is known for its sleek designs and broad selection of truck running boards. We offer extensive applications for pickups, vans, SUVs, and CUVs. In addition, Owens Products produces a high-quality selection of truck bed dog boxes and pickup tool boxes with innovative designs. We also offer a great assortment of space-saving garage and trailer organization and storage solutions.