Women's Tanana Heavyweight 100% Merino Wool Crew Base Layer
Named after Alaska's Tanana River—an important tributary of the Yukon that flows past Fairbanks—this heavyweight crew is built for arctic temps. The 400 g/m² interlock knit wraps you in a blanket of warmth while the superfine 18.5-micron merino stays soft and itch-free against your skin. When cold weather tries to keep you indoors, this is how you fight back.
Why You'll Love This Top: At 100% Australian merino wool with no synthetic fillers, this delivers pure natural warmth. Princess seams create a flattering, shaped silhouette that moves with your body instead of hanging like a box. The tagless label eliminates itchy neck irritation, while flatlock seams prevent chafing during all-day wear. Works as a base layer under shells and jackets, or as a cozy mid layer on moderately cold days.
Why Merino? Heavyweight merino is your coldest-weather workhorse. Unlike synthetic base layers that trap odor and feel clammy, merino actively manages moisture and neutralizes bacteria. Wear this top multiple days without washing—it'll stay fresh while synthetics get funky. The natural temperature regulation keeps you comfortable whether you're generating heat snowshoeing or sitting still ice fishing.
Size & Fit: Regular fit with room to breathe—runs true to size. 100% Merino Wool, 400 g/m² heavyweight interlock knit, 18.5 micron fibers. Weight: 12.8 oz (362g) in size Medium. UPF 50+ sun protection. Australian merino wool, imported. Temperature range: Active 0°F and below | Inactive 0-30°F.
Women's Size Chart:
| Size | US Size | Chest (in) | Waist (in) |
|---|---|---|---|
| XS | 2-3 | 32-33 | 24-25 |
| S | 4-6 | 34-35 | 26-27 |
| M | 8-10 | 36-37 | 28-30 |
| L | 12-14 | 38-40 | 31-33 |
| XL | 16-18 | 41-43 | 33-35 |
| 2X | 20-22 | 44-46 | 35-37 |
Care Instructions: Turn inside out. Machine wash cold on gentle cycle with like colors. Tumble dry low. Use Nikwax Wool Wash or mild detergent. Store in an airtight container for long-term storage. Never use fabric softener or bleach.
Complete Your Look: Pair with the Kenai Heavyweight Pants for complete cold-weather coverage from Minus 33, a 5th-generation New Hampshire family business with over a century of textile expertise.
Women's Tanana Heavyweight 100% Merino Wool Crew Base Layer
Named after Alaska's Tanana River—an important tributary of the Yukon that flows past Fairbanks—this heavyweight crew is built for arctic temps. The 400 g/m² interlock knit wraps you in a blanket of warmth while the superfine 18.5-micron merino stays soft and itch-free against your skin. When cold weather tries to keep you indoors, this is how you fight back.
Why You'll Love This Top: At 100% Australian merino wool with no synthetic fillers, this delivers pure natural warmth. Princess seams create a flattering, shaped silhouette that moves with your body instead of hanging like a box. The tagless label eliminates itchy neck irritation, while flatlock seams prevent chafing during all-day wear. Works as a base layer under shells and jackets, or as a cozy mid layer on moderately cold days.
Why Merino? Heavyweight merino is your coldest-weather workhorse. Unlike synthetic base layers that trap odor and feel clammy, merino actively manages moisture and neutralizes bacteria. Wear this top multiple days without washing—it'll stay fresh while synthetics get funky. The natural temperature regulation keeps you comfortable whether you're generating heat snowshoeing or sitting still ice fishing.
Size & Fit: Regular fit with room to breathe—runs true to size. 100% Merino Wool, 400 g/m² heavyweight interlock knit, 18.5 micron fibers. Weight: 12.8 oz (362g) in size Medium. UPF 50+ sun protection. Australian merino wool, imported. Temperature range: Active 0°F and below | Inactive 0-30°F.
Women's Size Chart:
| Size | US Size | Chest (in) | Waist (in) |
|---|---|---|---|
| XS | 2-3 | 32-33 | 24-25 |
| S | 4-6 | 34-35 | 26-27 |
| M | 8-10 | 36-37 | 28-30 |
| L | 12-14 | 38-40 | 31-33 |
| XL | 16-18 | 41-43 | 33-35 |
| 2X | 20-22 | 44-46 | 35-37 |
Care Instructions: Turn inside out. Machine wash cold on gentle cycle with like colors. Tumble dry low. Use Nikwax Wool Wash or mild detergent. Store in an airtight container for long-term storage. Never use fabric softener or bleach.
Complete Your Look: Pair with the Kenai Heavyweight Pants for complete cold-weather coverage from Minus 33, a 5th-generation New Hampshire family business with over a century of textile expertise.