Smartwool Apparel Size Guide
Get a supersoft and cozy layer for casual apparel by adding Smartwool® Intraknit Thermal Merino Base Layer Bottoms to your collection. Featuring Intraknit™ technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high-intensity activities.
Seamlessly knit mesh ventilation designed to help keep you dry and comfortable.
Slim fit is intended to follow the contours of the body.
Fitted with a mid-rise waist, Merino Sport yarn combines the power of Merino with polyester
Pull-on style.
Elasticated waistband.
Full-length legs.
52% wool, 45% polyester, 2% elastane, 1% polyamide.
Machine wash, dry flat.
Imported.
Measurements:
Waist Measurement: 13 in
Outseam: 41 in
Inseam: 29 in
Front Rise: 9 in
Back Rise: 15 in
Leg Opening: 4 in
Product measurements were taken using size SM. Please note that measurements may vary by size.
Size:
XL
Size & fit
Women's clothing
US
Letter
Chest, cm
Waist, cm
Hips, cm
0
XXS
78
60
85
2
XS
81
63
88
4
S
84
66
91
6
S
87
69
94
8
M
90
72
97
10
M
93
75
100
12
L
97
79
104
14
L
101
83
108
16
XL
105
87
112
18
XL
110
92
117
20
2XL
115
97
122
This is a general chart — Smartwool sizing may differ, check the product description.
International delivery
Shipping calculated at checkout
Returns & exchanges
Within 30 days of delivery
Smartwool Apparel Size Guide
Get a supersoft and cozy layer for casual apparel by adding Smartwool® Intraknit Thermal Merino Base Layer Bottoms to your collection. Featuring Intraknit™ technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high-intensity activities.
Seamlessly knit mesh ventilation designed to help keep you dry and comfortable.
Slim fit is intended to follow the contours of the body.
Fitted with a mid-rise waist, Merino Sport yarn combines the power of Merino with polyester
Pull-on style.
Elasticated waistband.
Full-length legs.
52% wool, 45% polyester, 2% elastane, 1% polyamide.
Machine wash, dry flat.
Imported.
Measurements:
Waist Measurement: 13 in
Outseam: 41 in
Inseam: 29 in
Front Rise: 9 in
Back Rise: 15 in
Leg Opening: 4 in
Product measurements were taken using size SM. Please note that measurements may vary by size.
SKU
7-9732437
Brand
Smartwool
Category
womens / clothing / pants
Variants
4
Customer reviews
3.0
I bought these for a trip to Iceland in February. They are comfortable and warm, being the most important two things. I thought since these were intraknit they would fit better to your legs so they would be smooth underneath my other layer but they are kind of loose. I wore them under a horseback riding winter jumpsuit, under fleece lined hiking pants and sometimes around the property under a puffy skirt. I would recommend them with the caveat that if you are looking for a fitted layer, I wouldn't, but just for warmth yes. These are not like the previous smartwool pants I purchased which were more like activewear leggings
3/2/2026
4.0
This is a great base layer that is also attractive when all the top layers come off. Very comfortable & perfectly warm, I'm only sorry it took me this long to buy them!
My only warning is that the sizing runs a bit small. I'm 5'4, 117 lbs. Using the fit guide, I ordered an XS and it was too tight under the arms and I couldn't even get the pants over my hips! The small fits perfectly.
3/2/2026
3.0
Not what I expected but they worked: I bought these for a trip to Iceland in February. They are comfortable and warm, being the most important two things. I thought since these were intraknit they would fit better to your legs so they would be smooth underneath my other layer but they are kind of loose. I wore them under a horseback riding winter jumpsuit, under fleece lined hiking pants and sometimes around the property under a puffy skirt. I would recommend them with the caveat that if you are looking for a fitted layer, I wouldn't, but just for warmth yes. These are not like the previous smartwool pants I purchased which were more like activewear leggings
3/1/2026
5.0
Again, I went to Norway, in the Artic and it kept me very warm as a base layer!
2/24/2026
5.0
It kept me very warm! Again, I went to Norway, in the Artic and it kept me very warm as a base layer!
2/24/2026
5.0
Loving the intraknit base layers, the higher waist is perfect and they move well for downhill skiing.
2/20/2026
5.0
Asking intraknit to marry me: Loving the intraknit base layers, the higher waist is perfect and they move well for downhill skiing.
2/19/2026
5.0
I've used these pants for my base layer for skiing and snowshoeing and LOVE them! Perfectly sized and comfy. Price is high but no other complaints!
2/7/2026
5.0
I wear my Intraknit Themals under my pants, by themselves at home. They wash well air dry fast and I also have the matching top with contrasting white sleeves which is just perfect.
2/1/2026
5.0
Extremely comfortable to wear. Does an excellent job of keeping you warm without being to bulky to move. Fits well under the jeans.
