Camp Picnic Rug | HempBy Wandering Folk. A must have for any outdoor enthusiast, the Camp Collab Picnic Rug is crafted from our new HEMP gingham fabric, a custom blend of recycled fibers and cotton. Designed with both style and durability in mind, this outdoor rug features a waterproof underside, ensuring that your picnics are as comfortable as they are picturesque. The rug comes with a short brown woven carry strap and a fringe trim, making it easy to pack and carry.