What does “W-S” measurement stand for? November 14, 2017 08:49 Updated Follow W-S is the waist to shoulder measurement. The length from your hip bone up to your shoulder bone. Related articles Is a junior small the same as an adult small? Which size of SHRED. gloves should I buy? I ordered the wrong size, what do I do now? How do I fit my backprotector? Comments 0 comments Article is closed for comments.