What is the principle behind the 'textured fleece that forms an air layer' mentioned in the description?
Looking at this lightweight half-zip fleece makes me wonder how the structure described as an air layer actually leads to warmth.
It works by trapping air warmed by body heat between the soft fiber textures, maintaining warmth even with a thin and light thickness.
The garment is lightweight, but the warmth held by the fibers is substantial. ostrya's Alpinum Half Zip Fleece is a lightweight pullover product designed to be worn lightly[1]. In general, the three-dimensional texture of fleece fabric forms a structure that traps air in tiny gaps. This trapped layer of still air acts as an insulator, blocking outside cold and retaining body heat.
This garment naturally forms such an air layer by applying a soft and supple textured fleece made of 100% Polyester[2][3]. Because it effectively traps body heat without making the fabric itself heavily bulked up, it is easy to regulate body temperature during outdoor activities, whether worn on its own or layered under outerwear.
The fabric weight per unit area (g/m²) or the garment's total weight figure has not yet been confirmed.
Product measurements
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26FW Alpinum Half Zip Fleece Umber
Other stated figures
| Part | S |
|---|---|
| 길이 ◦ | 66cm |
| 소매길이 | 83cm |
| 가슴너비 | 57cm |
For rows marked with ◦, flat measurement or circumference could not be confirmed in official sources, so hmmm determined them using figures from the same item.