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Item #: 332277638

From mile repeats to cross training at the park, the PhD® Ultra Light Short Sleeve can handle your sweatiest workouts. Smartwool starts with naturally breathable Merino wool to help regulate body temperature and naturally resist odor, then add polyester to increase stretch and recovery and decrease dry time. Side mesh panels give extra ventilation where you need it most.


  • Modern raglan sleeve design removes underarm and shoulder seams
  • Flatlock seam construction designed to eliminate chafing
  • Short sleeves
  • Regular fit
  • Body-mapped mesh panels for additional breathability and moisture management
  • Ultra light Merino blend provides stretch and recovery, breathability and quick drying


  • Body - 56% Merino Wool / 44% Polyester
  • Mesh - 54% Merino Wool / 46% Polyester