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2025 Vol.32, Issue 6 Preview Page

Research Article

Comparative Evaluation of Outdoor Jackets: Physical and Physiological Wear Performance by Side Vent Design

아웃도어 재킷의 측면 환기 디자인에 따른 물리적 · 생리적 착용 성능 비교

Ho-Joon Lee1
,
Suhyeon Yeom2
,
Subin Chung2
,
Jae-Yeon Jung2
,
Do-Hyung Kim3
,
Joo-Young Lee124*
이 호준1
,
염 수현2
,
정 수빈2
,
정 재연2
,
김 도형3
,
이 주영124*
1Research Institute for Human Ecology, Seoul National University, Seoul, Korea
2Department of Fashion and Textiles, College of Human Ecology, Seoul National University, Seoul, Korea
3K2 Korea, Seoul, Korea
4Graphene Research Center for Convergence Technology, Advanced Institute of Convergence Technology, Suwon, Korea
1서울대학교 생활과학연구소
2서울대학교 의류학과
3케이투코리아㈜
4차세대융합기술연구원 그래핀융합기술센터
*Corresponding Author
31 December 2025. pp. 839-856
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Abstract

The purpose of the present study was to evaluate the wear performance of outdoor jackets featuring side ventilation designs placed at three locations—the underarm, upper-arm rear, and chest—using zippers of identical length. Thermal insulation of clothing at standing/walking with/without wind (2 m/s) was measured using a thermal manikin. Human wear trial was conducted with eight males at an air temperature of 25°C with 50%RH. A trial consisted of 10-min rest followed by 30-min exercise and 20-min recovery. Thermal insulation showed no differences among the four jacket conditions. However, insulation markedly decreased in the presence of wind (Reduction rate: 48±2% at standing and 42±1% at walking) and body movement. Human wear trials indicated no significant differences among the four jacket conditions in whole-body thermoregulatory responses, including auditory canal temperature, mean skin temperature, heart rate, total sweat loss, overall thermal sensation, and thermal comfort. In contrast, side ventilation designs influenced clothing microclimate variables and local subjective sensations (P < 0.05). The underarm-vent condition produced the lowest local microclimate temperature and humidity at the underarm region. Local thermal sensation, thermal comfort, and humidity sensation around the armpits were most favorable under the upper-arm rear vent condition. These results indicated that the strategic placement of vents improved local microclimate regulation and subjective comfort of the underarm region. Based on these findings, a curved, combined ventilation design enabling simultaneous ventilation of the underarm and upper-arm rear regions is recommended for outdoor jackets. In addition, because back-region humidity remained high even during recovery, future designs should incorporate ventilation features to effectively reduce microclimate humidity in the back area during outdoor activities.

Keywords
Ventilation
Pit zips
Thermal comfort
Clothing microclimate
Bellow effect
Pumping effect
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Information
  • Publisher :The Korean Society of Living Environmental System
  • Publisher(Ko) :한국생활환경학회
  • Journal Title :Journal of The Korean Society of Living Environmental System
  • Journal Title(Ko) :한국생활환경학회
  • Volume : 32
  • No :6
  • Pages :839-856
  • Received Date : 2025-11-21
  • Revised Date : 2025-12-18
  • Accepted Date : 2025-12-22
  • DOI :https://doi.org/10.21086/ksles.2025.12.32.6.839
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