Always bring a down jacket
A beautiful day in the mountains — but not yet. There’s something about putting on a down jacket while still in shorts, wrapping your hands around a coffee mug, and watching the sun hit the ridge. It might be the best part of the day. And the coldest.

Morning coffee.
3,375 meters.
Two minutes ago.









Summer Insulation — Lightweight and Packable Layers
A lightweight insulation jacket is a vital piece of equipment for summertime mountain excursions, providing warmth, protection, and adaptability to an ever-changing alpine environment. Here are our best options.
New
M Flexlight Hood
Active stretchable insulation
40000 JPY
New
M Technolight Hood
Ultralight synthetic warmth
60000 JPY
M Ultralight Down Hood 2.0
Timeless, packable perfection
70000 JPY
Guide Hyperlight Down Hood
When every gram matters
70000 JPY
M Ultralight Down Jacket 2.0
Timeless, packable perfection
65000 JPY
M Ultralight Down Vest 2.0
Timeless, packable perfection
40000 JPY
M Free Padded Hood
Active stretchable insulation
25000 JPY
M Ultralight Down Hood 2.0
Timeless, packable perfection
70000 JPY
M Free Padded Overshirt
Active stretchable insulation
30000 JPY
Guide Aerogel Hybrid Hood 2.0
Next-gen insulation tech
60000 JPY
Archive
Guide Aerogel Hybrid Vest 2.0
24500 JPY
35000 JPY
New
M Flexlight Hood
Active stretchable insulation
40000 JPY
New
M Technolight Hood
Ultralight synthetic warmth
60000 JPY
M Ultralight Down Hood 2.0
Timeless, packable perfection
70000 JPY
M Ultralight Down Jacket 2.0
Timeless, packable perfection
65000 JPY
M Ultralight Down Vest 2.0
Timeless, packable perfection
40000 JPY
Guide Hyperlight Down Hood
When every gram matters
70000 JPY
Archive
Guide Aerogel Hybrid Hood 2.0
Next-gen insulation tech
42000 JPY
60000 JPY
New
M Flexlight Hood
Active stretchable insulation
40000 JPY
New
M Technolight Hood
Ultralight synthetic warmth
60000 JPY
M Ultralight Down Hood 2.0
Timeless, packable perfection
70000 JPY
M Ultralight Down Jacket 2.0
Timeless, packable perfection
65000 JPY
Archive
Guide Hyperlight Down Hood
When every gram matters
49000 JPY
70000 JPY
Guide Aerogel Hybrid Hood 2.0
Next-gen insulation tech
60000 JPY
M Free Padded Overshirt
Active stretchable insulation
30000 JPY
M Ultralight Down Jacket 2.0
Timeless, packable perfection
65000 JPY
Guide Hyperlight Down Hood
When every gram matters
70000 JPY
Archive
Guide Aerogel Hybrid Hood 2.0
Next-gen insulation tech
42000 JPY
60000 JPY
M Ultralight Down Hood 2.0
Timeless, packable perfection
70000 JPY
Guide Aerogel Hybrid Hood 2.0
Next-gen insulation tech
60000 JPY
M Ultralight Down Hood 2.0
Timeless, packable perfection
70000 JPY