Bam Klein Sofa by Xie Fengcou is a highly esteemed winner of the very prestigious 2026 Àmì-ẹ̀yẹ Idẹ A' Design Award in Àpẹẹrẹ Ohun-èlò Ilé Competition Category.
IdẹOhun-èlò Ilé· 2026
Bam Klein Sofa
by Xie Fengcou
Client: Lionhan Home Design Co.,Ltd.
Àmì-ẹ̀yẹ Idẹ A' Design Award Winner in Ohun-èlò Ilé Category
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The Design
About Bam Klein Sofa
Bam Klein jẹ́ sofa tí a rí ìmísí rẹ̀ láti ara ìrísí topological ti ìgò Klein. A ṣe àpẹrẹ ibùjókòó, ẹ̀yìn àti àwọn ibi ìgbọ́wọ́lé gẹ́gẹ́ bí ojú ìtẹ̀wọ́ kan tí ó tẹ̀ lọ́nà àìdáwọ́dúró, nítorí náà ìyàtọ̀ tí ó wọ́pọ̀ láàárín inú àti òde ti kúrò. Ìhùmọ̀ inú rẹ̀ para pọ̀ mọ́ igi tí a ṣe lọ́nà ìmọ̀ ẹ̀rọ àti irin tí a fún ní okun, nígbà tí àwọn tìmùtìmù foomu tí ó ní agbára ìpadàbọ̀sípò gíga àti aṣọ ìbora ń pèsè àtìlẹ́yìn ergonomic. Àwọn ẹsẹ̀ irin fẹ́lẹ́fẹ́lẹ́ aláwọ̀ dúdú tí a bò pẹ̀lú ẹ̀tù powder fún sofa náà ní ìrísí fúyẹ́ tí ó sì ń mú kí ìhùmọ̀ rẹ̀ dúró ṣinṣin. Ìkọ́lé rẹ̀ gẹ́gẹ́ bí ẹyọ kan ṣoṣo dín ìnira orí àwọn ibi ìsopọ̀ kù ó sì ń mú kí ó pẹ́ láì bàjẹ́.
The Recognition
About the Àmì-ẹ̀yẹ Idẹ A' Design Award
Bam Klein Sofa 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 Bam Klein Sofa 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. Bam Klein Sofa 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
- This project reinterprets the topological Klein bottle into a continuous one-piece curved surface that merges backrest and armrests. The seamless geometry eliminates conventional interior exterior distinctions, redefining furniture boundaries. Its lightweight visual presence, slender metal legs, ergonomic curvature, and structurally balanced framework integrate conceptual innovation with functional stability and refined contemporary aesthetics.
- Dimensions & Packaging
- This project measures 2400 mm, 950 mm, 720 mm with a seat height of 420 mm and leg height of 180 mm. Its frame combines engineered wood and reinforced steel, cushions are high-resilience foam, and upholstery is premium fabric. Weighing approximately 85 kg with a 300 kg load capacity, it is packaged in protective wrap and reinforced export cartons for safe delivery.
- Tags
- Topological Design, Klein Bottle Inspiration, Sculptural Sofa, Continuous Surface, Contemporary Furniture, Ergonomic Innovation, Lightweight Structure, Interdisciplinary Design, Modern Living
- Production Technology
- The sofa utilizes precision-molded internal framing to achieve a continuous curved profile. High-resilience polyurethane foam ensures ergonomic support, while premium upholstery enhances tactile comfort. Slender black powder-coated steel legs provide structural reinforcement. The monolithic construction minimizes joint stress, improving durability and load distribution while maintaining formal fluidity.
- Design Challenge
- The primary challenge was transforming a mathematically infinite surface into a manufacturable and stable structure. Balancing visual lightness with structural integrity required advanced internal framing solutions. Production constraints, material flexibility limits, and ergonomic validation posed technical obstacles. The breakthrough lay in integrating topology, engineering logic, and human comfort within a feasible industrial system.
- Research
- This interdisciplinary research translated topological concepts into ergonomic furniture using geometry analysis, parametric modeling, Cad prototyping, and comfort testing. User trials validated curvature support and structural balance, demonstrating that mathematical abstraction can enhance both comfort and aesthetic appeal, providing insights that influence contemporary furniture design and commercial differentiation.
- Inspiration
- The design draws inspiration from the Klein bottle's infinite surface, where inside and outside merge into a continuous entity. This topological paradox inspired an exploration of spatial continuity in furniture. Motivated by interdisciplinary integration between mathematics and product design, the project transforms abstract geometry into ergonomic form, redefining how the human body engages with domestic space.
- Project Duration
- The project started in April 2025 and finished in August 2025 in China.
- Operation Flow
- Users interact intuitively by sitting or reclining along the continuous curved surface. The form gently supports the back and arms without rigid edges, encouraging relaxed postures. Elevated by slender legs, the sofa appears light while remaining stable. Its unified structure allows the body to feel embraced yet unrestricted, enhancing comfort and spatial openness.
- Image Credits
- Image #1: Photographer Xie Fengcou, Bam Klein, 2025.
Image #2: Photographer Xie Fengcou, Bam Klein, 2025.
Image #3: Photographer Xie Fengcou, Bam Klein, 2025.
Image #4: Photographer Xie Fengcou, Bam Klein, 2025.
Image #5: Photographer Xie Fengcou, Bam Klein, 2025.
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