What role does the long zipper on the side of the pants serve?
The inside of the pants has thermal processing, but there is a long zipper running along the entire side seam, so I am curious about what use this zipper has.
It serves as a ventilation opening to regulate body temperature by quickly venting built-up body heat outward during hikes or outdoor activities.
The inside retains warmth, while the outer side seams vent heat. SIERRA DESIGNS's 가이저 브러쉬드 벤틸레이션 팬츠 features brushed processing on the inside of the softshell fabric[1]. This is a process of brushing the fabric surface to raise the nap, blocking cold air and adding warmth. However, moving your body quickly makes you hot. Even in chilly weather, when climbing uphill or walking at a fast pace, sweat and heat tend to build up inside the clothes.
A wide ventilation zipper is placed lengthwise along the entire side of the pants[2]. This means you can lower the zipper to release hot air and let in cool breezes without stopping your walk or taking off your outerwear. In addition, hem drawcords are included, allowing you to manage heat escaping through the hem and adjust the silhouette of the pants as well[3].
The opening and closing direction of the wide ventilation zipper and the waterproof specifications of the zipper parts have not been confirmed yet.
Product measurements
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Geyser Brushed Ventilation Pants (Wide Fit) BLACK
Measurements
| Part | Value |
|---|---|
| 무게 | 590g |