Low activity is considered little to no physical movement, such as treestand hunting, while high activity is considered constant movement, such as running or hiking.
Other layers you plan to wear can affect these temperature recommendations. This chart is based on the assumption that you are using your Minus33 within a layering system. Learn more about layering.
Each weight has its own unique benefits that you can utilize for almost any adventure. Click on each weight below to learn more about the technology behind each weight.
145 gsm
Micro
Featherlike, ultralight merino wool, great as a solo layer or as a base layer in your layering system. Micro weight is perfect for high output activities such as hiking, skiing, and training. Our Micro is made from Woolverino corespun fabric for extra durability.
145 gsm
Jersey Knit
17.5 Microns
UPF Rating 20
Low Activity: 60+ degrees
High Activity: 75-45 degrees
170 GSM
Lightweight
Our Lightweight 100% Merino Wool is designed to be worn year round as a base layer, or as a solo piece in the spring and summer. With a UPF rating of 25, it's also great for sun protection on your next hike, ride, or climb.
170 gsm
Jersey Knit
17.5 Microns
UPF Rating 25
Low Activity: 60+ degrees
High Activity: 60-30 degrees
235 GSM
Midweight
Our Midweight is our best selling and most versatile fabric weight. Designed as a three-season garment, our Midweight works great as either a base or mid layer. It's the perfect choice for many adventures, including colder hikes, ski trips, and hunting in the early season.
235gsm
Interlock Knit
18.5 Microns
UPF Rating 50+
Low Activity: 60-30 degrees
High Activity: 30-0 degrees
400 GSM
Expedition
Our Expedition products are suitable for the coldest climates and true expeditions. It is one of the warmest and thickest merino wool options on the market. Hunters, mountaineers, and winter fanatics alike will all appreciate the next-level warmth of our Expedition Merino Wool.
400 gsm
Interlock Knit
18.5 Microns
UPF Rating 50+
Low Activity: 30-0 degrees
High Activity: 0 degrees and below
Need more help choosing a weight or product? Contact our Customer Service team for personalized advice and recommendations.
| WEIGHT | MICRO | LIGHTWEIGHT | MIDWEIGHT | EXPEDITION |
|---|---|---|---|---|
| GSM (g/m2) | 145 | 170 | 235 | 400 |
| Microns | 17.5 | 17.5 | 18.5 | 18.5 |
| UPF Rating | 20 | 25 | 50+ | 50+ |
| Seasons* | Summer, Spring, Fall, Winter | Summer, Spring, Fall, Winter | Spring, Fall, Winter | Late Fall, Winter |
| Low Activity Temps (F)* | 60+ Degrees | 60+ Degrees | 60-30 Degrees | 30-0 Degrees |
| High Activity Temps (F)* | 75-45 Degrees | 60-30 Degrees | 30-0 Degrees | 0 Degrees and Below |
| Outdoor Activities* | Hiking, Camping, Lifestyle, Running, Biking, Snowsports | Hiking, Camping, Lifestyle, Running, Biking | Hiking, Camping, Lifestyle, Hunting, Fishing, Snowsports | Hiking, Camping, Lifestyle, Hunting, Ice Fishing, Snowsports |
*Recommended, your results may vary slightly.
