
Smartwool Men's Classic All-Season Merino Base Layer Bottom 2026
A year-round favorite, our Classic All-Season Merino Base Layer Bottom works hard to keep you comfortable everywhere, from the ski lifts to the campsite. With an updated fit to improve functionality while enhancing aesthetics, these bottoms stay durable while 100% Merino next to skin keeps you comfy and ready for more action. This gear is built for four seasons of adventure.
- Slim
- Our slim fit is intended to follow the contours of the body
- Our lightweight Merino jersey fabric uses a recycled nylon core while still keeping 100% Merino wool next to skin
- Flatlock seam construction designed to help increase comfort and minimize chafing
- Fully functional fly
- Merino-lined elastic waistband designed for comfort
- 100% Merino next to skin
- Size medium inseam: 30.75" (78 cm)
- Made in Vietnam: 88% Merino Wool, 12% Recycled Nylon. Exclusive of Decoration and Elastic.
- SW016958
Men's Smartwool Apparel Size Chart
Size | Chest | Waist | Hip | Arm Length | Inseam |
---|---|---|---|---|---|
S | 36"-38" 91.5-96.5cm |
29"-31" 73.5-78.5cm |
36"-38" 89-96.5cm |
31"-32" 68.5-81.5cm |
30"-31" 73.5-78.5cm |
M | 39"-41" 99-104cm |
32"-34" 81.5-86.5cm |
39"-41" 99-104cm |
32"-33" 81.5-84cm |
31"-32" 78.5-81.5cm |
L | 42"-44" 106.5-112cm |
35"-37" 89-94cm |
42"-44" 106.5-112cm |
33"-34" 84-86.5cm |
32"-33" 81.5-84cm |
XL | 45"-48" 114.5-122cm |
38"-40" 96.5-101.5cm |
45"-48" 114.5-122cm |
34"-35" 86.5-89cm |
33"-34" 84-86.5cm |
XXL | 49"-51" 124.5-129.5cm |
41"-44" 104-112cm |
49"-51" 124.5-129.5cm |
35"-36" 89-91.5cm |
34"-35" 86.5-89cm |
How to Measure | Measure under the arms, around fullest part of chest and back circumference. | Measure around natural waistline, keeping tape a bit loose. | Measure around the fullest part of hip circumference, parallel to the floor. | With elbow bent slightly, measure frocm center back of neck, across top of shoulder, to elbow and down to wrist bone. | Measure along inside leg from crotch to ankle bone. Or measure a good fitting base layer pant from crotch seam to bottom along seam. |