Quarter-Zip Size & Fit

  • Relaxed, roomy fit, with dropped shoulders that sit just past your natural shoulder.
  • Order your usual size for the intended relaxed fit.
  • May shrink up to 5% in the first wash. If you're between sizes, size up.
  • Easiest way to choose: lay a quarter-zip you love flat and compare it to the chart.
  • Chest Width is measured flat, armpit to armpit.
  • Chest to Fit is the actual chest measurement (around the fullest part) this size will comfortably fit with room to spare — we build in extra ease for a relaxed, loose drape, not a snug one. If you're between two ranges, size up.
  • Measurements may vary by about ½" from piece to piece.
  • Questions about sizing? Write to hello@good-prognosis.com.
Size Chest Width Length Chest to Fit
S 23.5" 26" 41–45"
M 24" 27" 42–46"
L 25" 27.5" 44–48"
XL 25.5" 28.5" 45–49"
2XL 26.5" 29.5" 47–51"
3XL 27.5" 30" 49–53"

All measurements in inches. Chest Width is the garment measured flat; Chest to Fit is your actual chest measurement.