Left: The FrenchCreek Production 4330 avoids any size confusion by making its adult model one-size-fits-all. Right: Each side of the Petzl SWAN EASYFIT harness is color-coded to make gear-up easier for guests. sum21-easy-donning-02 0 By Donna Jacobs on January 3, 2022 Share. Twitter Facebook Google+ Pinterest LinkedIn Tumblr Email