HissyOne Hiss, Instant Cooling Flex
In a city where extreme heat has become the default, Hissy is a wearable cooling brand that lets you wear an overwhelming rush of cool whenever you choose, rather than simply endure the heat. The moment a CO₂ cartridge locks into place, cooling gas flows through the garment, instantly resetting a state thrown off balance by the heat.
Erase heat that crosses the line with a single Hiss. No mercy.
Dongheon Kang, Minseo Jung, Yuha Ko, Juhyeon Jeon, Woohi Park
Heat as the New Default
01
The New Climate Normal,
Heatwaves as a Constant
Heatwaves as a Constant
Heatwaves are no longer exceptional events. Record-breaking summers have become a condition of urban life, while the term 'climate anomaly' is losing its meaning as tropical conditions quietly become a global baseline. As a result, time outdoors is being reshaped from simply getting around into enduring the heat.
Between Interiors,
A New Urban Friction
A New Urban Friction
Brutal heat fragments a single journey through the city into a series of shorter trips. From subway to bus, convenience store to cafe. Urban life now unfolds through brief transitions between indoor spaces and transit points. Journeys are becoming shorter and more frequent, while discomfort grows more concentrated.
Instant-Native Generation
02
No Virtue in Endurance
Urban Gen Z
Urban Gen Z
For those who expect discomfort to be resolved without delay, heat is not a season to endure. It is Heat Friction, a sensory disruption to eliminate on the spot.
They take taxis to escape even a few minutes in the heat, reach for one cold drink after another, and reroute through air-conditioned spaces even when they have nothing to buy. Rather than linger in discomfort, they reset their state through quick action.
They take taxis to escape even a few minutes in the heat, reach for one cold drink after another, and reroute through air-conditioned spaces even when they have nothing to buy. Rather than linger in discomfort, they reset their state through quick action.
The Hissy Attitude
03
On Sun-Scorched Asphalt, Zero Tolerance for Discomfort
Instant Cooling Flex
Instant Cooling Flex
When Sensitivity
Becomes an Attitude,
Hissy
Becomes an Attitude,
Hissy
Hissy combines two meanings in a single name: 'Hissy Fit,' a sudden outburst of irritation, and 'Hiss,' the sound of compressed cooling air rushing out.
Sensitivity to heat is not a flaw to hide. It is an attitude of taking control the instant discomfort registers. Beyond functional cooling, Hissy becomes a flex, a way to own your state and express your style.
Sensitivity to heat is not a flaw to hide. It is an attitude of taking control the instant discomfort registers. Beyond functional cooling, Hissy becomes a flex, a way to own your state and express your style.
Wearable Cooling System
04
One Connection Unleashes an Intense Cooling Rush
The moment the cartridge locks into the garment port, the valve opens. The CO₂ inside expands to generate a powerful cooling airflow for 60 seconds, resetting your overheated state in an instant.
Sharp Cooling Across
Key Heat Points
Key Heat Points
The cooling airflow travels through channels inside the garment, reaching thermoreceptor-rich areas of the body. Even a brief burst creates a sharp temperature contrast.
Wherever Heat Builds,
We Intervene
We Intervene
Built to intervene the moment overheating occurs, the cooling system begins with the human body and extends to devices, mobility systems, and other objects exposed to urban heat.
Hissy Infrastructure
05
Iconic Cooling,
Made Yours
Made Yours
Each person's response to heat is translated into a design language that shapes the carrier's form and color. Once an ordinary consumable, the cartridge is reimagined as an iconic object that expresses each person's taste and attitude toward cooling.
Urban Mobility
Measured in Hiss
Measured in Hiss
One Hiss uses one cartridge to deliver an intense cooling rush for about 60 seconds. High-heat sections along each route are analyzed to show how many cartridges are needed to reach your destination. Routes are no longer chosen by arrival time alone. The heat along the way matters too.
A Citywide Cartridge
Circulation System
Circulation System
Stations supply and collect cartridges at key transit hubs. Check the distance and stock at nearby stations, then collect what you need with one NFC tap. Spent cartridges are inspected, recharged, and put back into circulation.
From Function to Culture
06
When Heat or Temper Goes Too Far,
A New Urban Cooling Gesture
A New Urban Cooling Gesture
When Things
Heat Up, Hit Back Fast
Heat Up, Hit Back Fast
When someone ahead suddenly stops under the blazing sun, the sun-scorched steps seem endless, and the traffic light at noon takes forever to change, summer picks a fight at every turn. You do not have to keep taking it. Before heat takes over your mood, attitude, and style, Hissy offers the shortest way to strike back and shapes a new culture of urban cooling.
Branding Applications
07
Tutor
Advisory Professor
심유리
Yuri Sim
UX Tutor
홍준표
Junpyo Hong
ID Tutor
주호영
Hoyoung Joo
VD Tutor
맛깔손
Mat-kkalson
Advisory Professor
심유리
Yuri Sim
UX Tutor
홍준표
Junpyo Hong
ID Tutor
주호영
Hoyoung Joo
VD Tutor
맛깔손
Mat-kkalson
Advisory Professor
심유리
Yuri Sim
UX Tutor
홍준표
Junpyo Hong
ID Tutor
주호영
Hoyoung Joo
VD Tutor
맛깔손
Mat-kkalson
Thanks to
Technical Advisor
남궁찬
Chan Namgeung
Videographer
최혜진
Hyejin Choi
Photographer
권진형
Jinhyeong Kwon
Technical Advisor
남궁찬
Chan Namgeung
Videographer
최혜진
Hyejin Choi
Photographer
권진형
Jinhyeong Kwon
Technical Advisor
남궁찬
Chan Namgeung
Videographer
최혜진
Hyejin Choi
Photographer
권진형
Jinhyeong Kwon
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All rights reserved
All rights reserved
2026 Samsung Design Membership. All rights reserved