Men's Wilderness Expedition Heavyweight Full Zip – 100% Merino Wool
If you're looking for a new everyday layer, look no further. This heavyweight full zip is so versatile, you'll find yourself reaching for it no matter where you're headed—rugged enough for the toughest trails and highest peaks, yet polished enough for running into town or warming up by the campfire. Built from 380 GSM Ponte de Roma double-knit merino wool, it delivers serious warmth while the full-length YKK zipper lets you vent quickly when you heat up.
Why You'll Love This Full Zip:
Ponte de Roma is a double-knit technique that creates incredibly durable, stretchy fabric—twice as tough as single-layer construction without adding bulk. Yoked shoulders keep seams off your shoulder line so backpack straps sit comfortably during long carries. Thumbholes keep your sleeves in place and add hand coverage when temperatures drop. Two hand pockets warm your fingers, and the YKK semi-auto locking zipper stays put when you set it. The zipper garage protects your chin from cold metal and fabric pinching. At 17.6 oz (size L), this is substantial cold-weather armor that still looks sharp enough for the lodge or office.
Why 100% Merino?
Pure Australian merino regulates temperature naturally—keeping you warm when you're sitting still and breathing when you're working hard. The fiber's legendary odor resistance means you can wear this layer day after day without washing, and moisture-wicking keeps you dry even during high-exertion activities. Unlike synthetic fleece that traps odors and melts near flames, merino stays fresh and is naturally fire-resistant. UPF 50+ protection adds sun safety during those long days above treeline. Triple certified (OEKO-TEX Standard 100, Woolmark, and Responsible Wool Standard) for quality you can trust.
Size & Fit:
Regular fit with room to layer a base layer underneath—not too tight, not too baggy. Runs true to size. Model in black is 5'10" / 150 lbs wearing a medium.
| Size | Chest | Waist |
|---|---|---|
| S | 35-37" | 29-31" |
| M | 38-40" | 32-34" |
| L | 41-43" | 35-37" |
| XL | 44-46" | 38-40" |
| 2XL | 47-49" | 41-43" |
| 3XL | 50-52" | 44-46" |
Care Instructions:
Machine wash cold on gentle cycle, tumble dry low. Use Nikwax Wool Wash or mild detergent. Turn inside out before washing. Never use fabric softener or bleach. Store in an airtight container to protect from moths during off-season.
Complete Your Look:
Layer over a midweight crew or henley for extreme cold, or wear directly over a microweight base layer for active pursuits. Browse our full merino wool collection for the complete Wilderness Expedition line.
Men's Wilderness Expedition Heavyweight Full Zip – 100% Merino Wool
If you're looking for a new everyday layer, look no further. This heavyweight full zip is so versatile, you'll find yourself reaching for it no matter where you're headed—rugged enough for the toughest trails and highest peaks, yet polished enough for running into town or warming up by the campfire. Built from 380 GSM Ponte de Roma double-knit merino wool, it delivers serious warmth while the full-length YKK zipper lets you vent quickly when you heat up.
Why You'll Love This Full Zip:
Ponte de Roma is a double-knit technique that creates incredibly durable, stretchy fabric—twice as tough as single-layer construction without adding bulk. Yoked shoulders keep seams off your shoulder line so backpack straps sit comfortably during long carries. Thumbholes keep your sleeves in place and add hand coverage when temperatures drop. Two hand pockets warm your fingers, and the YKK semi-auto locking zipper stays put when you set it. The zipper garage protects your chin from cold metal and fabric pinching. At 17.6 oz (size L), this is substantial cold-weather armor that still looks sharp enough for the lodge or office.
Why 100% Merino?
Pure Australian merino regulates temperature naturally—keeping you warm when you're sitting still and breathing when you're working hard. The fiber's legendary odor resistance means you can wear this layer day after day without washing, and moisture-wicking keeps you dry even during high-exertion activities. Unlike synthetic fleece that traps odors and melts near flames, merino stays fresh and is naturally fire-resistant. UPF 50+ protection adds sun safety during those long days above treeline. Triple certified (OEKO-TEX Standard 100, Woolmark, and Responsible Wool Standard) for quality you can trust.
Size & Fit:
Regular fit with room to layer a base layer underneath—not too tight, not too baggy. Runs true to size. Model in black is 5'10" / 150 lbs wearing a medium.
| Size | Chest | Waist |
|---|---|---|
| S | 35-37" | 29-31" |
| M | 38-40" | 32-34" |
| L | 41-43" | 35-37" |
| XL | 44-46" | 38-40" |
| 2XL | 47-49" | 41-43" |
| 3XL | 50-52" | 44-46" |
Care Instructions:
Machine wash cold on gentle cycle, tumble dry low. Use Nikwax Wool Wash or mild detergent. Turn inside out before washing. Never use fabric softener or bleach. Store in an airtight container to protect from moths during off-season.
Complete Your Look:
Layer over a midweight crew or henley for extreme cold, or wear directly over a microweight base layer for active pursuits. Browse our full merino wool collection for the complete Wilderness Expedition line.