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  • Heavyweight polyester/spandex fabric wicks moisture and dries rapidly
  • Soft fabric offers 4-way stretch for ease of movement; elastic waistband fits and moves comfortably
  • Fabric provides UPF 50+ sun protection
  • The women's REI Heavyweight long underwear tights feature nonchafing flat seams and a smooth outer surface which makes them easy to�layer under other clothing


View all REI Women's Long Underwear Bottoms

REI membership


Best Use Snowsports
Fabric 94% polyester/6% spandex
Sun-Protective Fabric Yes
UPF Rating 50
Moisture Wicking Yes
Quick Drying Yes
Underwear Weight Heavyweight
Inseam (in.) 29 inches
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.