1/S

Model is 5'11" and wearing a size 1/S Relaxed fit  Size Chart

Model is 5'9" and wearing a size 0/XS Fits true to size  Size Chart

Model is 5'9" and wearing a size 0/XS Fits true to size  Size Chart

Model is 5'11" and wearing a size 0/XS Fits snug Size Chart

Model is 5'9" and wearing a size 0/XS Fits true to size  Size Chart

Model is 5'11" and wearing a size 1/S Runs true to size  Size Chart