There has been a loosening up of upholstery in recent years. Where tightly tailored forms once dominated, furniture with ruffles, skirts and softer silhouettes has become increasingly common. At this year's 3 Days of Design, Vitra offers its own interpretation with 'Bascule', an easy chair by Berlin-based Studio Πthat combines fashion-inspired upholstery with an adjustable suspension system hidden beneath its surface.
Named after the French word for 'seesaw', ‘Bascule’ features a generous seat wrapped in a loosely cut textile cover that drapes around the frame like a jacket. Beneath the upholstery, however, lies a mechanism developed by Vitra's engineers that automatically adapts to the sitter's weight, allowing the chair to move smoothly from an upright position to a near-horizontal recline.
'Like a cross between a swing and a seesaw,' explain designers Lisa Ertel and Anne-Sophie Oberkrome, who took the new mechanism as the starting point for the design. Concealed within the armrests, it responds to subtle shifts in body weight with a gentle rocking movement supporting a range of sitting positions, regardless of the user's size.
When it came to upholstery, Ertel and Oberkrome looked to tailoring techniques from the world of fashion – originally developed for ease of dressing and freedom of movement – and translated them into the chair's design. During development, fabric was draped directly onto working prototypes to observe how it responded as the chair reclined and returned upright. Different textiles produced distinct fold patterns and surface textures, emphasising the chair's changing form.
'It always got exciting when movement came into play,' say the designers. 'As soon as “Bascule” moved, you could see how the fabrics responded – where they stretched taut, where they fell loosely and where folds formed.'
The result is a chair whose appearance shifts with use, lending it an air of effortless nonchalance.
‘Bascule’ can be customised with fabrics chosen in a single colour or in combinations of two different hues for the inner and outer faces. It comes in a high-back version with an integrated height-adjustable neck cushion that adds to its anthropomorphic appearance, or as a low-back model. Bases are available in aluminium swivel and wooden versions.
The comparison to clothing extends beyond appearance. Conventional polyurethane foams and permanently bonded components have been replaced with materials and construction methods designed for repair, replacement and eventual recycling. Cushions are made from recycled fibres or V-Foam, a material developed by Vitra and BASF that the company describes as the world's first economically recyclable polyurethane foam.
The approach reflects Studio Œ's broader interest in honest, long-lasting design, with components that can be separated and returned to the circular economy rather than discarded.
Vitra sees Bascule as a design equally suited to domestic interiors and workplace lounges. For Studio Œ, meanwhile, it continues an approach focused on repairability, material honesty and longevity.
'For us, the comparison with a jacket couldn't be more fitting,' says Oberkrome. 'A favourite jacket you love to slip on, one that is soft, familiar and simply comfortable.'
‘Bascule’ will officially launch in September 2026, but a preview is on show at Vitra's Copenhagen showroom during 3 Days of Design (10-12 June). There, the chair is presented beneath a tent-like canopy of soft fabric within what the brand describes as an immersive sensory setting.
Vitra, Klubiensvej 22, Pakhus 48 2150 Nordhavn Copenhagen