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Men's Classic Thermal Merino Base Layer 3/4 Bottom

Regular price $115.00 Sale price $34.50
Color: Black
Size: L

size chart

Size Charts
Smartwool Gloves Size Chart
Size Hand Size
XS 6"-6.5"15-16.5 cm
S 7"-7.5"18-19 cm
M 8"-8.5"20-21.5 cm
L 9"-9.5"23-24 cm
XL 10"-10.5"25-27 cm
Kids' Gloves Size Chart
Size Hand Width Hand Length
S 5" - 5.5" 5.5"
M 5.5" - 6" 6"
L 6 - 6.5" 6"
Arm Sleeves
Size Arm Length Bicep Wrist
S/M 27-32in68.5-81.5cm 9.5-12.5in24-32cm 5.5-7in14-18cm
L/XL 32-36in81.5-91.5cm 12.5-16in32-40.5cm 7-8.5in18-21.5cm
Smartwool Hat Size Chart
Size Head Circumference
Adult - One Size Fits Most (OSFM) 21.5"-23.5"55-60 cm
Kids L/XL 21.5"-23"54.5-56 cm
Kids S/M 20.5"-21"52-53.5 cm
Baby 12-24 Months 18"-19.5"48-52 cm
Baby 6-12 Months 17"-18"43-47 cm
Adult Unisex Apparel
Size Chest Waist Hip Inseam Arm Length
XXSM's XXS / W's XS 32-33in81.5-84cm 24-25in61-63.5cm 31-32in78.5-81.5cm 30-31in76-78.5cm 30-31in76-78.5
XSM's XS / W's S 33-35in84-89cm 26-28in66-71cm 33-35in84-89cm 31-32in78.5-81.5cm 31-32in78.5-81.5cm
SM's S / W's M 36-38in91.5-96.5cm 29-31in73.5-78.5cm 36-38in91.5-96.5cm 31-32in78.5-81.5cm 31-32in78.5-81.5cm
MM's M = W's L 39-41in99-104cm 32-34in81.5-86.5cm 39-41in99-104cm 31-32in78.5-81.5cm 32-33in81.5-84cm
LM's L = W's XL 42-44in106.5-112cm 35-37in89-94cm 42-44in106.5-112cm 32-33in81.5-84cm 33-34in84-86.5cm
XLM's XL = W's XXL 45-48in114.5-122cm 38-40in96.5-101.5cm 45-48in114.5-122cm 32-33in81.5-84cm 34-35in86.5-89
XXLM's XXL / W's XXXL 49-51in124.5-129.5cm 41-44in104-112cm 49-51in124.5-129.5cm 33-34in84-86.5cm 35-36in89-91.5cm
Kids' Smartwool Apparel Size Chart
Size Age Chest Waist Height Weight
XXS 2-3 22.5"-23.5"57-60cm 20"-21.5"50-54.5cm 35"-41"80-104cm 31-41 lbs
XS 4-5 24"-25"61-63.5cm 22"-22.5"56-57cm 42"-48"106.5-122cm 42-49 lbs
S 6-8 25.5"-26.5"64-67.5cm 23"-24"58.5-61cm 48"-54"122-137cm 49-59 lbs
M 9-10 27"-28"68.5-71cm 24.5"-25"62-63.5cm 54"-57"137-145cm 59-75 lbs
L 11-12 28.5"-30"72.5-76cm 25.5"-26"65-66cm 57"-60"145-152.5cm 75-89 lbs
XL 13-14 30.5"-32"77.5-81cm 26.5"-28"67.5-71cm 60"-62"152.5-157.5cm 89-100 lbs
Women's Smartwool Seamless Bra Size Chart
Size Comparable Bra Size
XS 30A, 30B, 30C, 32A, 32B
S 32C, 32D, 34A, 34B
M 34C, 34D, 36A, 36B
L 36C, 36D, 38A, 38B
XL 38D, 38C, 40A, 40B, 40C, 40D
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 fullest part of hip circumference, parallel to the floor. With elbow bent slightly, measure from 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 of good fitting base layer pant from crotch seam to bottom along seam.
Kids' Smartwool Socks Size Chart
Size U.S. Shoe Size Euro Shoe Size UK Shoe Size
XS 6-8.5 22-25 5-7.5
S 9-11.5 26-28 8-10.5
M 12-2.5 29-32 11-13.5
L 3-6 33-36 1-4.5
Smartwool Socks Size Chart
Size U.S. Men's Shoe Size U.S. Women's Shoe Size Euro Shoe Size UK Shoe Size
S 3-5.5 4-6.5 34-37 2-4.5
M 6-8.5 7-9.5 38-41 5-7.5
L 9-11.5 10-12.5 42-45 8-10.5
XL 12-14.5 N/A 46-49 11-13.5
XXL 15-17.5 N/A 50-53 14-16.5
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Help keep your ski boots, hiking boots, and running shoes free of bulk and friction with our Men's Classic Thermal Merino Base Layer 3/4 Bottom. 100% responsibly sourced Merino wool provides ultimate breathability and comfort, while a newly redesigned base layer pants fit helps reduce sag and excess fabric—perfect for your layering needs.

Men's Classic Thermal Merino Base Layer 3/4 Bottom

Men's Classic Thermal Merino Base Layer 3/4 Bottom

Help keep your ski boots, hiking boots, and running shoes free of bulk and friction with our Men's Classic Thermal Merino Base Layer 3/4 Bottom. 100% responsibly sourced Merino wool provides ultimate breathability and comfort, while a newly redesigned base layer pants fit helps reduce sag and excess fabric—perfect for your layering needs.

  • Our slim fit is intended to follow the contours of the body
  • Fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% Merino wool with interlock knit for comfort
  • Flatlock seam construction designed to help increase comfort and minimize chafing
  • Fully functional fly
  • Merino-lined elastic waistband designed for comfort
  • Size medium inseam: 21.5" (55 cm)
  • Made in Vietnam: 100% Merino Wool. Exclusive of Decoration.
  • SW016365
  • Machine Wash Warm Gentle Cycle
  • Wash With Like Colors
  • Do Not Bleach
  • Tumble Dry Low
  • Cool Iron As Needed
  • Do Not Iron Decoration
  • Do Not Dry Clean

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