We've selected from approximately 200 synthetic insulation models essential for autumn and winter outdoor activities, and we've compiled the best models for each purpose and preference, along with tips on how to choose the right one.
Mountaineering Introduction , Milestone , Recommendations , Patagonia , Insulation , How to Choose , Mont-Bell , AxisQueen , NORRONA , STATIC , Rab , Klattermusen , Columbia , Karrimor , THE NORTH FACE , Teton Bros. , Arc'teryx , Houdini
Written by Yasushi Hisatomi
![[New Store Information] The Ideas Behind ReBIRD™ - Arc'teryx Ikebukuro Tobu Brand Store Launches! [In-store Event Information]](https://outdoorgearzine.com/wp-content/uploads/1630468.jpg "[New Store Information] The Ideas Behind ReBIRD™ - Arc'teryx Ikebukuro Tobu Brand Store Launches! [In-store Event Information]")
![The first cooperating brands for the "First Time Snow Mountain Hike & Gear Experience" have been announced!](https://outdoorgearzine.com/wp-content/uploads/yukiyama_brand_01.jpg "The first cooperating brands for the "First Time Snow Mountain Hike & Gear Experience" have been announced!")
![[A genuine, self-funded review] Extremely practical for fall and winter low mountain hiking! A hands-on review of Workman's "Thermolite Trek Half Zip" and "Symbol Fleece Half Zip"](https://outdoorgearzine.com/wp-content/uploads/7966bae78213db11914ad7af893f8431.jpg "[A genuine, self-funded review] Extremely practical for fall and winter low mountain hiking! A hands-on review of Workman's "Thermolite Trek Half Zip" and "Symbol Fleece Half Zip"")
![John Muir Trail Northbound Traverse (2025 NOBO) Record [Chapter 5] Woods Creek to Lower Basin](https://outdoorgearzine.com/wp-content/uploads/JMT_catch_05.jpg "John Muir Trail Northbound Traverse (2025 NOBO) Record [Chapter 5] Woods Creek to Lower Basin")
![Patagonia R1 Air Jacket Review: The perfect balance of breathability and warmth for active outdoor activities and autumn/winter mountain climbing. The latest in lightweight, warm, and breathable fleece. [Hands-on Review]](https://outdoorgearzine.com/wp-content/uploads/DSC04594-1.jpg "Patagonia R1 Air Jacket Review: The perfect balance of breathability and warmth for active outdoor activities and autumn/winter mountain climbing. The latest in lightweight, warm, and breathable fleece. [Hands-on Review]")
![[OGZ's Yamamachi Exploration Vol. 22] Yamanashi Shioyama Edition: The trendy fragrance of the moment! And the morning market Cirque 3, 5, and 6 garages are packed full! [Event 3, 5, and 6 Shioyama Vol. 2 information also available]](https://outdoorgearzine.com/wp-content/uploads/1600850_catch.jpg "[OGZ's Yamamachi Exploration Vol. 22] Yamanashi Shioyama Edition: The trendy fragrance of the moment! And the morning market Cirque 3, 5, and 6 garages are packed full! [Event 3, 5, and 6 Shioyama Vol. 2 information also available]")
![[December Offline Event] Support your winter mountain debut! First-time snow mountain hike and gear experience](https://outdoorgearzine.com/wp-content/uploads/yukiyama2025-26.jpg "[December Offline Event] Support your winter mountain debut! First-time snow mountain hike and gear experience")
![Trails, rocky terrain, hiking, and trekking—the Caravan Grand King GK-ALT mountain boots fill a new sweet spot for hiking boots, allowing you to explore Japan's mountains with just one pair. [Quick Review]](https://outdoorgearzine.com/wp-content/uploads/DSC04000_catch.jpg "Trails, rocky terrain, hiking, and trekking—the Caravan Grand King GK-ALT mountain boots fill a new sweet spot for hiking boots, allowing you to explore Japan's mountains with just one pair. [Quick Review]")