An important part of developing the Spanky is allowing for a surface on the fabric that will not scratch today's high tech len's surface. The trail maps are sublimated into the fabric as to not cause any surface tension and therefore no scratching from the microfiber. The microfiber lens cloth is safe for all lens surfaces, including camera lenses. We at Spanky Sports, inc. tested over 35 different types of microfiber fabric and developed the one we felt shows the most water absorbency and particle transfer without smearing. For the upcoming winter season Spanky Sports, inc. is excited to introduce "the Spanky, the Microfiber Lens Cloth Trail Map" to skiers and snowboarders in 34 resort destinations. Please visit our resort link to see our complete list. Initially introduced four seasons ago, "the Spanky" has become a popular product at top ranked resorts like Whistler-Blackcomb in British Columbia. Travelers find it an excellent souvenir of their trip and locals are stoked to have a lightweight trail map/ lens cloth while on the mountain.