Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
-70%
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top
Route Merino Warm Base Layer Top

Route Merino Warm Base Layer Top

$95.00 $28.50
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Size
Color
Size chart
Men's Outdoor Pants
US Size Waist (in) Hip (in) Inseam (in)
S 29 – 31 35 – 37 32
M 32 – 34 38 – 40 32
L 35 – 37 41 – 43 32
XL 38 – 40 44 – 46 32
XXL 41 – 43 47 – 49 32
Women's Outdoor Pants
US Size Waist (in) Hip (in) Inseam (in)
XS 24 – 25 34 – 35 30 – 32
S 26 – 27 36 – 37 30 – 32
M 28 – 29 38 – 39 30 – 32
L 30 – 32 40 – 42 30 – 32
XL 33 – 35 43 – 45 30 – 32
Jackets & Outerwear (Men & Women)
US Men's US Women's Chest (in) Waist (in) Sleeve Length (in)
S XS 36 – 38 25 – 27 31 – 32
M S 39 – 41 28 – 30 32 – 33
L M 42 – 44 31 – 33 33 – 34
XL L 45 – 48 34 – 37 34 – 35
XXL XL 49 – 52 38 – 41 35 – 36
Footwear & Accessories
US Men's US Women's Foot Length (in) EU Size Sock / Mitten Size
7 8.5 9.6 40 S
8 9.5 10.0 41 M
9 10.5 10.4 42 M
10 11.5 10.8 43 L
11 12.5 11.2 44 L
12 13.5 11.6 45 XL
13 14.5 12.0 46 XL
📏 How to Measure:
• Pants: Measure waist at the natural waistline, hips at the widest part. Inseam is measured from the crotch to the ankle (Standard Regular is 32", Short is 30").
• Jackets: Measure chest under the arms and around the fullest part. Keep the tape slightly loose for layering.
• Footwear: Measure foot length from heel to longest toe while standing. If you plan to wear thick hiking socks, consider sizing up by half a size.
• All measurements are in inches. If you are between sizes, we recommend sizing up for a more comfortable fit during outdoor activities.
  • Free worldwide shipping
  • In stock, ready to ship
  • Inventory on the way

A warm, breathable base layer top built for cold-weather adventures.

**The Route Merino Warm Base Layer Top is ideal if you:**

- Need extra insulation without sacrificing breathability
- Prefer a stretchy fit that adapts to all your movements
- Want the natural warmth and comfort of merino wool

The Route Merino Warm Base Layer Top is a high-performance layer designed to keep you warm when the temperature drops. Made from a soft and stretchy blend with 75% merino wool, it offers excellent insulation, natural odor resistance, and reliable moisture management. Merino mesh panels under the arms provide targeted breathability where you need it most, preventing overheating during high-intensity activities. With its crewneck design and slim fit, it layers easily under mid-layers and jackets, making it a versatile piece for skiing, hiking, or winter training. If you’re looking for a durable base layer that delivers dependable warmth and comfort in cold conditions, the Route Merino Warm Base Layer Top has you covered.

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