Designers Guild Mahakam Cobalt Outdoor Decorative Pillow. The perfect decorative pillow for inside and out - a dynamic striped weave outdoor decorative pillow inspired by vintage hand woven rugs. In gorgeous tones of cobalt blue, emerald and soft white the weave is constructed from a specialist PET polyester yarn made from recycled plastic bottles. Care should be taken to dry out the decorative pillow and pad should it get soaking wet and water logged.