Icebreaker Ultralite Base Layer Crew

Ultralite Base Layer Crew

Item "#100335
Size Chart
Admiral/Rocket Admiral/Rocket

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Icebreaker Ultralite Base Layer Crew (100335):

  • Perfect for warm to cool conditions; ultralight for year-round comfort and easy layering
  • Made from premium merino wool jersey with stretch Lycra
  • Highly breathable, temperature regulating merino wool transports moisture vapor away from the skin, prevents chilling in cool conditions, and never feels clammy
  • Naturally odor resistant—wear it again and again odor-free
  • Feels soft against the skin—does not itch
  • Lycra-enhanced for ultimate fit and faster dry time
  • Thumb loops provide hand warmth and keep sleeves in place when layering
  • Raglan sleeves for unrestricted movement
  • Underarm gusset creates greater ease of movement
  • Contrast flatlock stitching for a smooth fit and nonchafing comfort
  • Slim, close-to-body athletic fit for total comfort and easy layering
  • Ideal for running, fitness, hiking, and biking


Built for speed with smooth seams and a close-to-body athletic fit, Icebreaker's Relay Crew is an ultralight running T-shirt that lets you power through your workouts, no sweat.


Materials: 96% merino wool, 4% Lycra