Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's

Classic Thermal Merino Baselayer Bottom - Women's

Durable Merino Baselayer. Stay warm and dry while you’re carving up the slopes or the trails with...
Availability: In stock
$45.00
$149.99
$45.00
Color: Charcoal Heather
Size: M
Subtotal: $45.00
Size guide
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Description

Durable Merino Baselayer.

Stay warm and dry while you’re carving up the slopes or the trails with the Women’s MERINO 250 Baselayer Bottom from Smartwool. The Merino 250 bottom uses the heaviest wool which provides exceptional softness, warmth and durability. This breathable fabric is also excellent for regulating body temperature and wicking moisture away from the body. The slim fit design features side and curved back seams stitched with flatlock construction for minimal chafing and maximum softness against the skin.

  • 100% Merino wool
  • Interlock knit
  • Merino-covered elastic waistband
  • Flatlock seam construction
  • Side seams
  • Curved back seam
  • Slim fit
Classic Thermal Merino Baselayer Bottom - Women's

Classic Thermal Merino Baselayer Bottom - Women's

$149.99 $45.00
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's
Classic Thermal Merino Baselayer Bottom - Women's

Classic Thermal Merino Baselayer Bottom - Women's

$149.99 $45.00
Color: Charcoal Heather
Size: M
Size chart
Altitude Sports Outlet — Size Guide

Size Guide

All measurements in inches (in) and pounds (lb). Built for the trail, fitted for you.

Men's Tops & Jackets

Chest: measure around the fullest part. Sleeve: from center back neck to wrist.

Size Chest (in) Waist (in) Sleeve (in)
S 36–38 29–31 32–33
M 39–41 32–34 33–34
L 42–44 35–37 34–35
XL 45–48 38–41 35–36
XXL 49–52 42–45 36–37
Women's Tops & Jackets

Bust: measure around the fullest part. Sleeve: from shoulder seam to wrist.

Size Bust (in) Waist (in) Sleeve (in)
XS 31–32 24–25 30–31
S 33–35 26–27 31–32
M 36–37 28–30 32–33
L 38–40 31–33 33–34
XL 41–43 34–36 34–35
Men's Bottoms (Hiking Pants / Shorts)

Waist: measure around natural waistline. Inseam: from crotch to ankle.

Size Waist (in) Hip (in) Inseam (in)
28 28–29 35–36 30–32
30 30–31 37–38 30–32
32 32–33 39–40 31–33
34 34–35 41–42 31–33
36 36–37 43–44 32–34
38 38–39 45–46 32–34
Women's Bottoms (Hiking Pants / Leggings)

Waist: measure around natural waist. Inseam: from crotch to desired length.

Size Waist (in) Hip (in) Inseam (in)
XS (0–2) 24–25 34–35 29–30
S (4–6) 26–27 36–37 29–30
M (8–10) 28–30 38–40 30–31
L (12–14) 31–33 41–43 30–31
XL (16) 34–36 44–46 31–32
Men's & Women's Shoes (Running / Hiking / Trail)

Foot length: measure heel to longest toe. For hiking boots, size up ½ size.

US Men US Women Foot Length (in) EU
7 8.5 9.6–9.8 40
8 9.5 10.0–10.2 41
9 10.5 10.4–10.6 42
10 11.5 10.8–11.0 43
11 12.5 11.2–11.4 44
12 13.5 11.6–11.8 45
13 — 12.0–12.2 46
Kids' Shoes (Running / Hiking)

Foot length: measure heel to longest toe. Kids grow fast—size up for growing room.

US Kids Foot Length (in) EU
10 6.5–6.7 27
11 6.8–7.0 28
12 7.1–7.3 29
13 7.4–7.6 31
1 7.7–7.9 32
2 8.0–8.2 33
3 8.3–8.5 34
4 8.6–8.8 35
5 8.9–9.1 36
6 9.2–9.4 37
Backpacks (Daypack / Hiking / Camping)

Torso length: measure from C7 vertebra (base of neck) to top of hip bones.

Size Torso Length (in) Capacity (L) Best For
XS / S 15–17 20–35 Day hikes / kids
M 17–19 35–55 Weekend trips
L / XL 19–21 55–75 Multi-day / thru-hikes
Sleeping Bags

User height: measured flat on back. Temperature ratings are guidelines—layer up in cold.

Size User Height (in) Shoulder Girth (in) Temp Rating (°F)
Regular up to 72 60–62 20°F / -6°C
Long up to 78 62–64 20°F / -6°C
Double up to 72 (each) — 30°F / -1°C
Tents (Camping / Backpacking)

Capacity is based on average adult sleepers. Size up for extra gear or pets.

Capacity Floor Area (sq ft) Peak Height (in) Best For
1-Person 15–20 36–40 Solo backpacking
2-Person 25–32 40–44 Couples / duo trips
3-Person 35–45 44–48 Small family
4-Person 50–65 48–56 Family / basecamp
6-Person 75–95 56–68 Group / car camping
Cycling Helmets

Head circumference: measure around forehead, just above eyebrows.

Size Head Circumference (in) Head Circumference (cm)
XS/S 20.0–21.5 51–55
M 21.5–23.0 55–59
L/XL 23.0–24.5 59–63
How to measure. Use a soft tape measure over light clothing. For the most accurate fit, measure twice and compare to the table above.
Between sizes? For tops and jackets, size up if you plan to layer. For hiking boots and trail shoes, size up ½ size to accommodate thicker socks.
Still unsure? Our gear is backed by a 60-day free return policy—find your fit risk-free. Contact support@altitude-sportshub.it.com and we'll help you nail it.

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