Stealth Jaketi by Tan Kai, Chong Gang and Wang Yonggang

Stealth Jaketi by Tan Kai, Chong Gang and Wang Yonggang is a highly esteemed winner of the very prestigious 2025 Àmì-ẹ̀yẹ Idẹ A' Design Award in Àpẹẹrẹ Àṣà Ìmúra, Aṣọ àti Ẹ̀wù Competition Category.

IdẹÀṣà Ìmúra· 2025

Stealth Jaketi

by Tan Kai, Chong Gang and Wang Yonggang

Client: Liuyong

Àmì-ẹ̀yẹ Idẹ A' Design Award Winner in Àṣà Ìmúra Category

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Verified Award Winner

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Colors

The Design

About Stealth Jaketi

Stealth jẹ́ jaketi aṣọ-ìgbóná (down jacket) tí a lè ṣàyẹ̀wò kó di irọ̀rí tí ó ní àpẹrẹ U. Ìdajì ìsàlẹ̀ rẹ̀ ni a ṣe pọ̀ sókè láti dá àtìlẹ́yìn ọrùn sí, a sì ṣe àtúnṣe àwọn bọ́tìnì láti bá ọrùn mu dáadáa. Ìṣètò pípín aṣọ-ìnú (fabric-separator construction) jẹ́ kí aṣọ náà kéré ní ìwúwo, ó sì rọrùn láti fọ̀ mọ́. Ohun tí a fi kún inú rẹ̀ jẹ́ ìyẹ́ ẹyẹ àparò (goose down) tí ó ní ipá kíkún (fill power) 700, pẹ̀lú ìpín ọgọ́rùn-ún 90 ti ìyẹ́ gidi. Aṣọ ìta jẹ́ okun ìgbàlà (bamboo fiber) tí a lè tún ṣe, nígbà tí aṣọ inú jẹ́ okun graphene. A fi okùn ọ̀gbọ̀ tí ó lágbára gan-an (nylon) àti ìránṣọ abẹ́rẹ́ méjì ṣe àwọn àsopọ̀. Èròngbà náà ni láti pèsè ìgbóná àti ibi ìsinmi nígbà ìrìnàjò.

The Recognition

About the Àmì-ẹ̀yẹ Idẹ A' Design Award

Stealth Jaketi jẹ́ olùborí Àmì-ẹ̀yẹ Idẹ A' Design Award, ìdánimọ̀ olókìkí gan-an tí a fún àwọn àwòṣe tó tayọ tí wọ́n yàtọ̀ nípasẹ̀ ìṣẹ̀dá, àrékérekè àti ọgbọ́n inú. Àwọn olùborí Idẹ jẹ́ àwọn ohun èlò tó ní ìjáfáfá gan-an tí wọ́n sì ní ìṣẹ̀dá tó yani lẹ́nu tí wọ́n ń ṣe ẹ̀rí ìrírí gbígbòòrò, ìrònú àti ọgbọ́n àwọn olùṣàwòṣe wọn. A retí pé Stealth Jaketi yóò jẹ́ ohun tí a kà sí gidigidi, tí a gbóríyìn fún tí a sì nífẹ̀ẹ́, tó jẹ́ ti ọ̀jáfáfá lọ́nà tó ṣe pàtàkì tó sì ní ìmúṣẹ̀dá tuntun. Àwòṣe tó borí Àmì-ẹ̀yẹ Idẹ A' Design Award yìí ń kó àwọn ọ̀nà tó dára jùlọ nínú iṣẹ́ ọnà, sáyẹ́ǹsì, àwòṣe àti ìmọ̀-ẹ̀rọ jọ, ó sì tayọ nítorí àfiyèsí rẹ̀ sí àwọn àlàyé kékeré. Stealth Jaketi ń tẹ́ àwọn ohun tí a nílò lọ́rùn lọ́nà àgbàyanu, ó ń fọwọ́ kan àwọn ìfẹ́ inú, ó ń gbà ọkàn ó sì ń fa ìfẹ́ láti mọ̀ mọ́ra.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: The Stealth U Pillow Down Jacket represents a pioneering advancement in outerwear design, seamlessly integrating the insulative properties of a down jacket with the ergonomic comfort of a U-shaped pillow. This innovative garment challenges conventional designs by concealing its multifunctional nature within a streamlined silhouette, utilizing proprietary fabric-separator technology.
Dimensions & Packaging: Length: 1180mm
Chest: 1160mm
Sleeve: 540mm
Shoulder: 420mm
Filling: 90% white goose down
Down weight: 170g
Tags: down jacket, U-shaped pillow, face-lining separation, lightweight comfort, eco-friendly materials, graphene fiber, multifunctional design, travel rest, weather-resistant, efficient warmth retention
Production Technology: Production Technology and Materials
Face-Lining Separation: Facilitates easy cleaning and maintenance while maintaining lightness and comfort.
Filling Material: 700 fill power, 90% down content goose down ensures superior warmth.
Outer Fabric: Renewable bamboo fiber, environmentally friendly and offers excellent breathability and moisture absorption.
Inner Fabric: Graphene fiber provides health benefits such as antibacterial, anti-mite properties.
Seam Technology: High-strength nylon thread with double-needle stitching enhances durability.
Design Challenge: The toughest part of this design activity was balancing creativity with practical feasibility. Internally, we faced the challenge of innovating beyond traditional down jacket designs to achieve warmth while ensuring slimness and multifunctionality. From a societal perspective, the product had to be stylish and meet modern consumers' environmental expectations. External obstacles included compliance with laws, production technology limits, and information accessibility.
Research: We conducted a design study aimed at developing a product that combines the functions of a down jacket and a U-shaped pillow. Through market research, user interviews, and prototype testing, we gathered feedback from travelers. Using design software and 3D printing technology, we created prototypes that participants tested and provided suggestions for improvement. The results showed that this design is not only warm but can also easily transform into a comfortable U-shaped pillow. This highlights the importance of user experience and opens new market opportunities with an eco-friendly and practical product.
Inspiration: The Stealth U Pillow Down Jacket was inspired by the need for multifunctional, portable outerwear. We integrated a down jacket with a U-shaped pillow to provide warmth and comfort, addressing the bulkiness of traditional jackets. Our unique fabric-separator technology ensures lightweight, compact folding, and superior insulation. Advanced materials enhance performance and sustainability.
Project Duration: The project began in Shenzhen, China in December 2022, and concluded in Shenzhen, China in December 2023. It became available for sale on major e-commerce platforms and in offline stores starting in April 2024.
Operation Flow: This down jacket is designed for comfort and ease. Simply fold the jacket upward from the bottom to quickly transform it into a U-shaped pillow, perfect for resting during travels. Adjust the buckles to fit your neck size for personalized support. For the best experience, make sure to adjust the buckles correctly before use and follow care instructions when cleaning. This design excels because it offers warmth along with convenience for those who want to rest on the go.
Team Members: Tan Kai
Chong Gang
Wang Yonggang