Well insulated and comfortable, this is a rugged cushion you can take just about anywhere, whether to upgrade the seating at outdoor events or for knee protection when working. It has a 2" thick core of closed-cell foam that won't absorb moisture, with a covering of heavy water-resistant canvas. It conforms comfortably to contours, yet is firm enough to support your weight without bottoming out.
The 18" × 10" cushion weighs only 13 oz and has a built-in handle so it's easy to carry, and a 9 1/2" × 10 1/4" pocket to carry a snack, a book or a few garden tools. Easily rinses clean.