Skip to content
This Weekend Only: Free US Shipping Sitewide!
Use BF25 for 25% Off Sitewide
Shop Gifts For All
Model wearing NEIWAI's Classic Form-fitting Thermal Underwear Set in Petal Pink.

Classic Form-fitting Thermal Underwear Set

Final Sale
Rated 4.8 out of 5
Based on 36 reviews
Save 40%
$68.00
$40.80
Size
Color: Sand Dollar
Availability: translation missing: en.general.icons.icon_check_circle icon

Notify me when back in stock

Warmth is important – but so are breathability, texture, and mobility. This Classic Form-fitting Thermal Underwear Set from our Classic Collection is made using WARM MATCH®, a fabric that’s lightweight, absorbent, and retains body heat without restricting movement or getting too stuffy. This thermal underwear set is the perfect undergarment for your winter plans this season, both indoors and out!

This item is final sale and cannot be returned or exchanged.

  • Details
  • Materials & Care
  • Shipping & Returns

  • • Shallow V streamlined neckline and nearly invisible bottom hem. No side seams for a chic, slimmer look and more comfort when lying down.
    • High-waist pants with legs just the right length to wear with socks & boots, and functional pockets concealed along the waistline!
    • WARM MATCH® is our own special blend using TENCEL™ Modal and other fabrics - WARM MATCH® garments are soft, breathable, and will keep you warm & cozy all winter long!

  • • Materials: 64% acrylic blend, 30% TENCEL™ Modal, 6% Spandex
    • Care instructions: Machine wash on gentle cycle, tumble dry on low heat or hang to dry

  • • Free Shipping on US orders of $50+ 
    • This item is final sale and cannot be returned or exchanged.

Questions? Email us.

Write a Review
average rating 4.8 out of 5
Based on 36 reviews
  • 5 Stars
    30 Reviews
  • 4 Stars
    4 Reviews
  • 3 Stars
    2 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
92% of reviewers would recommend this product to a friend
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 4 out of 5
Quality
Rated 4 out of 5
Customer photos and videos
Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal
36 Reviews
Reviewed by Shelley C.
Verified Buyer
I recommend this product
Size Purchased
S
Rated 5 out of 5
Review posted

Love these!

These pieces fit perfect and are just what I was looking for! They slide under pants and jeans easily and r soft and warm. I’m 5’1 & it’s hard finding the right size & these were. Will buy again. Thank you! Shelley

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Was this helpful?
Reviewed by Madison P.
Verified Buyer
I recommend this product
Size Purchased
M
Rated 5 out of 5
Review posted

HIGHLY RECOMMENDED!

Highly recommended! The seamless fit is perfect for layering underneath thicker winter clothing. The quality and fit of these thermals surpass any other thermals that I’ve owned.

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Was this helpful?
Reviewed by Hanlu D.
Verified Buyer
I recommend this product
Size Purchased
M
Rated 5 out of 5
Review posted

Versatile and Comfy

Great as PJs or as base layers for winter styles: have worn underneath jeans and sweaters. Got a pair for my mom too.

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Open Image by Hanlu D. in a modal
Was this helpful?
Reviewed by olivia
Verified Buyer
I recommend this product
Size Purchased
M
Rated 5 out of 5
Review posted

Soft and warm

I really like this set. The fabric is soft and comfortable, and it adds a level of insulation that’s great for lounging in the winter. I can layer sweaters or shirts over it, and sometimes I use them as PJs. I’m usually a S but got a M and they fit well. They are a bit sheer on the legs if you bend them, the top is nice and opaque

Loading...
How it Fits
Rated -1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Open Image by olivia in a modal
Was this helpful?
Reviewed by Amy
Verified Buyer
I recommend this product
Size Purchased
M
Rated 5 out of 5
Review posted

very comfortable stuff and size is normal.

Good product!

Loading...
How it Fits
Rated -1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 4 out of 5
Was this helpful?
Reviewed by Lisa B.
Verified Buyer
I recommend this product
Size Purchased
M
Rated 5 out of 5
Review posted

Classic Thermal Set

These are very comfy and cozy. I really like the quality fabric and color options.

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Was this helpful?
Reviewed by GS
Verified Buyer
I recommend this product
Size Purchased
M
Rated 5 out of 5
Review posted

Light, warm and comfortable

Pretty color and super light, warm and comfortable. Thin enough to wear under clothes comfortably. Great innerwear.

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Was this helpful?
Reviewed by ziman W.
Verified Buyer
I recommend this product
Size Purchased
L
Rated 5 out of 5
Review posted

great!

very good! better than expected!

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 4 out of 5
Was this helpful?
Reviewed by Elizabeth C.
Verified Buyer
I recommend this product
Size Purchased
S
Rated 5 out of 5
Review posted

LOng Underwear

So incredibly soft.

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Was this helpful?
Reviewed by Claire L.
Verified Buyer
I recommend this product
Size Purchased
S
Rated 5 out of 5
Review posted

Soft and comfy

Love this pair. Very comfy and good quality!

Loading...
How it Fits
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 5 out of 5
Quality
Rated 5 out of 5
Was this helpful?