In what situations do you reverse and wear this reversible vest that can be worn inside out?
With both windproof and thermal insulation functions listed, you might wonder how a specification that can be worn inside out is actually useful in an outdoor environment.
Weighing a light 94g based on size S, this vest is designed to be reversed according to the situation between the nylon outer surface that blocks wind and the fleece surface that traps heat.
Looking at the weight first, it is only 94g based on size S[1]. SIERRA DESIGNS used 10D RIPSTOP NYLON (10D ripstop nylon) and Polartec® Alpha® Direct 90g polyester fabric together for this vest[2]. In general, ripstop nylon has high tear strength relative to its thin thickness and has properties that deflect wind.
The two fabrics form the inside and outside, providing water repellency and windproofing along with thermal insulation and breathability together[3]. The synthetic insulation used on the inside has the fiber structure exposed to the outside without adding a separate lining, so it has the characteristic of trapping heat while quickly releasing moisture to the outside[4]. When you need to block cold wind, you wear it with the water-repellent nylon side facing out, and when sweat builds up during hiking and you need to quickly discharge heat, you reverse it so that the fleece fabric faces out[5].
hmmm, it means that within a single lightweight garment, the different roles of a windbreaker and a breathable insulated vest are made to be switched with just a single reversing action.

We have not yet confirmed how pocket positions or the zipper closure method change when it is reversed and worn inside out.
Product measurements
View details
W) 모스(MOSS) 폴라텍 알파 다이렉트 90 리버시블 베스트 BLACK
Other stated figures
| Part | Value |
|---|---|
| 무게 | 90g |
| NYLON ◦ | 100cm |
| POLYESTER ◦ | 100cm |
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.
