What are some popular brands for women's base layer tops at REI?

The top brands for women's base layer tops include: Icebreaker Kari Traa REI Co-op Smartwool Helly Hansen Browse our selection of top outdoor gear and apparel brands.

How can I earn a Co-op Member Reward on my women's base layer tops purchase?

REI Co-op Members get 10% back annually on every eligible purchase, including most full-priced women's base layer tops. (10% is typical but not guaranteed.) To earn or redeem rewards, buy a one-time $30 lifetime membership, or sign in as a member. See details about the Co-op Member Reward .

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Women's Base Layer Tops

(123 products)

Products (123)

Sort: Best Match

REI Co-opLightweight Base Layer Half-Zip Top - Women's Plus Sizes
$9.83
Save 78%
compared to $44.95
8 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Plus
Top Rated
Wild RyeEvie Raglan Base Layer Top - Women's
$61.83
Save 50%
compared to $125.00
11 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Top Rated
Nani SwimwearUinta Base Layer Top - Women's
$39.83
Save 50%
compared to $80.00
10 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Plus