10 bestBase Layer Womenof September 2025
112M consumers helped this year.
1

Merino.tech Merino Wool Base Layer Womens Set - Merino Thermal Underwear Womens Top and Bottom Lightweight, Midweight, Heavyweight (Large, 250 Black)
Merino.tech

9.9
2

Merino.tech Merino Wool Base Layer Women 100% Merino Wool Midweight Long Sleeve Thermal Shirts + Wool Socks (Medium, Black 250)
Merino.tech

9.8
17% off
3

DANISH ENDURANCE Thermal Tops Womens, Merino Wool Base Layer Womens, Thermal Long Sleeve Shirt for Winter, Grey, XXL
DANISH ENDURANCE

9.7
40% off
4

Mountain Warehouse Talus Womens Long Sleeves Baselayer Top - Thermal Underwear, Lightweight Ladies Shirt, Breathable, Warm & Easy Care - Spring Summer & Outdoors Navy Women's Size 12
Mountain Warehouse

9.6
5% off
5

TCA Super Thermal Long Sleeve Women Running, Ski Base Layer - Compression Shirts Woman, Workout Tops for Women - Tourmaline, M
TCA
Editor’s Choice

9.4
OtherUp to 56% off
25% off
6

TACVASEN Womens Running Top Long Sleeve T Shirt UV Tops Summer Sun Protection Shirt UPF Walking Shirt Outdoor Work T-Shirt Lightweight Base Layer Black
TACVASEN

9.3
7

NOOYME Thermal Base Layer Women, Ski Base Layers Women, Ladies Thermal Clothing & Leggings Quick Dry Thermal Underlayer Women Ladies Thermal Underwear Set Black-gray
NOOYME

9.1
40% off
8

Mountain Warehouse Talus Women Thermal Baselayer Pants - Lightweight, Breathable & Quick Drying Ladies Leggings - for Travel, Hiking, Camping, Skiing, Snowboard Navy Women's Size 8
Mountain Warehouse

8.8
54% off
9

Under Armour Women's UA CG Authentics Crew Shirt
Under Armour

8.6
10

LeMieux Women’s Base Layer Top - Long Sleeve Athletic Thermal Shirts - Equestrian Apparel & Gear for Horseback Riding - (Chilli/UK16)
LeMieux

8.4

Best Reviews Guide Newsletter
Get exclusive articles, recommendations, shopping tips, and sales alerts
Sign up for our newsletter to receive weekly recommendations about seasonal and trendy products
Thank you for subscribing!
By submitting your email address you agree to our Terms and Conditions and Privacy Policy