M

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

Relaxed fit 95% Cotton, 5% Cashmere Size Chart

Model is 5'10" and wearing a size S Runs true to size Size Chart

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

  Relaxed fit, we recommend ordering your true size 100% Cotton Cable Knit Size Chart

  Model is 5'9" and wearing a size XS Runs true to size Size Chart