Bam Klein 沙发 by Xie Fengcou is a highly esteemed winner of the very prestigious 2026 A' Design Award 铜奖 in 家具设计 Competition Category.

铜家具· 2026

Bam Klein 沙发

by Xie Fengcou

Client: Lionhan Home Design Co.,Ltd.

A' Design Award 铜奖 Winner in 家具 Category

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Verified Award Winner

Verify Award Status for #181694

View at A' Design Award Press Release Award Badge

Colors

The Design

About Bam Klein 沙发

Bam Klein 是一款灵感源自克莱因瓶拓扑形态的沙发。座面、靠背与扶手被塑造为一个连续的曲面整体，从而消解了内外之别的常规界限。内部框架结合了工程木材与加固钢材，高弹回弹泡棉坐垫与织物软包则提供符合人体工学的支撑。纤细的黑色粉末喷涂钢制沙发腿赋予整体轻盈的视觉观感，同时确保结构稳固。一体成型的构造减少了接合部位的应力，提升了产品的耐久性。

The Recognition

About the A' Design Award 铜奖

Bam Klein 沙发是 A' Design Award 铜奖得主，这是授予以创造力、独创性和敏锐见长的杰出设计的极具声望的认可。铜奖得主是技艺娴熟、创意惊人的作品，印证了其设计师丰富的经验、想象力与机智。预计Bam Klein 沙发将成为一件备受推崇、令人钦佩且被珍爱的物品，兼具显著的专业性与创新性。这件赢得 A' Design Award 铜奖的设计融入艺术、科学、设计和技术领域的最佳实践，并因注重细节而出类拔萃。Bam Klein 沙发出色地满足需求，触动渴望，迷住情感，并吸引好奇心。

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.