![[Fall/Winter 2025] Down? Synthetic? Fleece? The key to comfortable layering is choosing the right material. The best mid-layers for mountaineering (cold weather gear) by type, and tips for choosing the right one.](https://outdoorgearzine.com/wp-content/uploads/midlayer_best.jpg "[Fall/Winter 2025] Down? Synthetic? Fleece? The key to comfortable layering is choosing the right material. The best mid-layers for mountaineering (cold weather gear) by type, and tips for choosing the right one.")
[Fall/Winter 2025] Down? Synthetic? Fleece? The key to comfortable layering is choosing the right material. The best mid-layers for mountaineering (cold weather gear) by type, and tips for choosing the right one.
THE NORTH FACE , Mountaineering Introduction , to Choose , Recommendations , Patagonia , Midlayer , Down , Fleece , Insulation , NORRONA , Rab
Written by Yasushi Hisatomi
![[Fall/Winter 2025] We've selected the best synthetic insulation for fall/winter outdoor activities from approximately 200 models, and here are some tips on how to choose the right one.](https://outdoorgearzine.com/wp-content/uploads/DSC05318-1.jpg "[Fall/Winter 2025] We've selected the best synthetic insulation for fall/winter outdoor activities from approximately 200 models, and here are some tips on how to choose the right one.")
![[Fall/Winter 2025] Recommended base layers for this season and purpose, selected after comparing over 200 items, and how to choose the perfect one for you](https://outdoorgearzine.com/wp-content/uploads/DSC05395.jpg "[Fall/Winter 2025] Recommended base layers for this season and purpose, selected after comparing over 200 items, and how to choose the perfect one for you")
![The most notable behavioral warming clothing of this season, "Rab Evolute Hoody," brings active insulation to the next stage [Practical Review]](https://outdoorgearzine.com/wp-content/uploads/DSC04914-1.jpg "The most notable behavioral warming clothing of this season, "Rab Evolute Hoody," brings active insulation to the next stage [Practical Review]")
![[A self-paying review without any consideration] A field test of three carefully selected trekking pants that are lightweight and beautifully silhouetted in the summer mountains.](https://outdoorgearzine.com/wp-content/uploads/summer_trekking_pants.jpg "[A self-paying review without any consideration] A field test of three carefully selected trekking pants that are lightweight and beautifully silhouetted in the summer mountains.")
