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This product is no longer available, but don't go just yet.


  • 4-way-stretch polyester fabric wicks moisture off skin and dries fast
  • Fabric has a UPF 50+ sun protection rating
  • Space-dye process produces a textured color that's unique to each garment
  • Flatseam construction reduces chafing
  • Thumbholes let you secure the sleeves over hands and wrists for warmth
  • The women's REI Space Dye Midweight Long Underwear Crewneck Top in plus sizes has a next-to-skin fit

Made in USA.

View all REI Women's Long Underwear Tops

REI membership


Best Use Hiking, Snowsports
Shirt Style Crew
Fabric 92% polyester/8% spandex
Sun-Protective Fabric Yes
UPF Rating 50
Moisture Wicking Yes
Quick Drying Yes
Underwear Weight Midweight
Sleeve Length Long Sleeve
Gender Women's

Size chart

Sizing notes

Some women's pants are available in petite and tall sizes. Typically petite sizes fit women 4'11" to 5'3". Regular sizes fit women 5'4" to 5'8". Tall sizes fit women 5'9" to 5'11". PETITE: Generally, as compared to regular sizes, petite sizes are 2.5 inches shorter in inseam and ¾ inch shorter in total rise. TALL: tall sizes are 3 inches longer in inseam and 1 inch longer in total rise.