NOW: Fabric artist Suzanne Tidwell prefers to call them Tree Wraps, although she good-naturedly agrees that Tree Socks is their popular name. And popular they are, appearing not only here but also in Occidental Park and Westlake Mall. Made from water-resistant and durable acrylic yarn, the park’s biggest tree required, she estimates, about 40 hours of knitting and wrapping to install. Next stop for these “wraps” or “socks” will be Redmond. Jean, who again took the repeat photograph, loves them.