Quick answer
Choose the M's Double Dunfri if you need serious warmth for cold-weather commutes or outdoor stays; choose the M's Go Jacket if you want a breathable, active softshell for variable conditions and high-output activities.
Warmth vs breathability: two different jobs
The Double Dunfri is insulated with 200g Primaloft Gold, making it a true cold-weather piece that retains 98% of its warmth even when damp. That’s ideal for low-output activities like waiting for the bus, walking the dog, or belaying at a crag on a chilly day.
The Go Jacket is a lightweight softshell with no insulation layer. Its strength is breathability and wind resistance, so you stay comfortable during high-output efforts like cycling, hiking uphill, or kayaking. You can layer underneath when temperatures drop.
Versatility across activities
Both jackets are designed for multiple uses, but they excel in different zones. The Double Dunfri combines minimalist style with high warmth, working for both wilderness and urban settings. The Go Jacket is built for an active lifestyle—from work commutes to climbing and paddling—with a focus on low weight and durable construction.
Trade-offs at a glance
- Warmth vs breathability: Double Dunfri provides heavy insulation; Go Jacket offers wind resistance and high breathability. Choose based on your activity intensity: low and cold vs high and variable.
- Weather protection: Double Dunfri excels in cold and damp but is not windproof; Go Jacket is windproof but not insulated. For wet cold, Double Dunfri wins; for windy but active conditions, Go Jacket is better.
- Weight and packability: Double Dunfri is heavier due to insulation; Go Jacket is lightweight and easy to stow. If you need to carry your jacket, Go Jacket is more packable.
Product facts
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M's Double Dunfri: Lined with 200g Primaloft Gold, retains 98% of warmth when wet, and uses no down feathers. You get reliable warmth in damp conditions without the ethical concerns of down, making it a solid choice for wet winter weather.
M's Double Dunfri
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M's Go Jacket: Windproof softshell designed for active use—lightweight, breathable, and durable for climbing, hiking, and paddling. It keeps wind at bay while letting moisture escape, so you stay dry and comfortable during high-output activities.
M's Go Jacket
Which jacket fits you?
Best for
- Cold-weather commuters and outdoor enthusiasts who want maximum warmth in damp conditions (Double Dunfri)
- Active users who need a breathable, wind-resistant shell for high-output adventures and daily cycling (Go Jacket)
Not ideal for
- High-output activities in cold weather (Double Dunfri may be too warm)
- Extended static use in freezing temperatures without layering (Go Jacket lacks insulation)
