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Oson Citterio Collection
Antonio Citterio, architect and designer, was born in 1950 and now lives and works in Milan. Citterio started working with Vitra in 1988. Since then, he has designed a number of office and visitor chairs, armchairs, and the office furniture programmes Ad Hoc, Spatio, and Ad One. The Citterio Collection is continually expanding. Vitra has been exploring sitting and working for more than 40 years. Long years of experience are incorporated into the development of all products.
Oson S
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The 3D armrests of Oson C and Oson CE can be adjusted for height, width and depth and can swivel 360 degrees.
The height of the backrest is variable.
The back brace optimises support in the lumbar zone.
The seat is adjustable in height and depth.
The automatic synchronised mechanism, combined with the synchronised forward tilt, encourages dynamic seating habits and offers a smooth range of movement.
The backrest can be locked into any position with the Stop-and-Go mechanism.
Oson C
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The ergonomic backrest of Oson CE allows the shoulders to sink lightly into the backrest, causing the spine to spontaneously rise and straighten. In the reclined position, the viewing angle of the user adapts to the position of the monitor, so that it is possible to continue working in a relaxed position.
Oson CE
The construction is rigid in the lumbar zone, providing optimal back support.
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The synchronised forward tilt causes the seat surface to tip slightly forward along with the user’s weight to facilitate deskwork. This causes the spine to spontaneously rise and straighten. The backrest follows this movement, providing uninterrupted back support. As a result, dynamic seating habits are encouraged with continuous support in every sitting position.
Citterio Collection
Visavis 2
Visasoft
Visalounge
Visaroll 2
T-Chair
Axess Plus
Visastripes
Ad Hoc Office System, Oson C
Spatio Office System
Oson automatically adapts to the weight of the user. An additional fine-tuning adjustment is provided for exceptionally lightweight or heavy individuals.
The shell-shaped seat provides comfort and ergonomic support without pressure points.
In addition to automatic weight adaptation, Oson offers a variety of individual adjustment options. The controls are logical, simple to use and easy to locate. They also have a pleasant surface texture.
New technology combines the forward tilt of the seat with the synchronised mechanism: the backrest follows the forward tilt of the seat in a synchronised movement.
With three chair versions and a wide variety of materials and colours, Oson is the right choice for an ergonomic office chair in any work setting.
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Oson is an office chair for spontaneous and individual use. Without complicated adjustments all Oson models offer a high level of comfort and the newest technology for ergonomically correct, healthy seating. Due to its automatic weight adjustment, Oson encourages dynamic seating habits while supporting the user’s body in every position – from the reclined working position to the front edge of the chair for deskwork.
Oson S is especially suitable for offices, studios and the home environment.
Oson C is well-suited to companies with diverse workplaces requiring a chair that quickly adapts to different users.
Oson CE is an attractive new model in this series with a high, flexible backrest.
Oson C, Design Antonio Citterio | Microsoft, Paris
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400-525 15 3/4”- 20 3/4”
405 16” 505 20”
200-300 8”- 12”
505 20”
388 15 1/4”
380 15”
545-730 211/2”- 28 3/4” 395-445 15 1/2”- 17 1/2” 400-525 15 3/4”- 20 3/4”
225 8 3/4”
410-465 161/4”- 18 1/4”
820-995 321/4”- 39 1/4”
525-750 20 3/4”- 291/2” 400-450 15 3/4”- 17 3/4”
625-880 241/2”-341/2” 530 203/4”
910-1085 35 3/4”- 42 3/4” 500-550 19 3/4”- 213/4”
400-525 153/4”-203/4”
700 211/2 ” 540 211/4”
380 15”
545-730 211/2”- 28 3/4” 395-445 151/2”- 171/2” 400-525 15 3/4”- 20 3/4”
530 20 3/4”
405 16”
525-750 20 3/4”- 29 1/2” 400-450 15 3/4”- 17 3/4”
540 211/4”
Oson S
910-1085 35 3/4”- 423/4” 500-550 19 3/4”- 213/4”
388 15 1/4”
Oson C Logistic
Oson CE
400-525
505 20”
15 3/4”- 20 3/4”
380 15”
610-895 24”- 351/4” 395-445 151/2”- 171/2” 655 25 3/4”
200-300 8”-12”
550-550 19 3/4”- 213/4”
625-880 241/2”- 341/2” 540 211/4”
400-525 15 3/4”- 20 3/4”
380 15”
545-730 211/2”- 28 3/4” 395-445 151/2”- 17 1/2”
530 20 3/4”
200-300 8”-12”
610-895 24”- 351/4” 395-445 151/2”- 171/2”
910-1085 35 3/4”- 42 3/4”
380 15”
625-880 241/2”- 341/2”
1025-1205 401/4”- 471/2” 615-665 241/4”- 261/4”
540 211/4”
400-525 15 3/4”- 20 3/4”
1025-1205 401/4”- 471/2” 615-665 241/4”- 261/4”
Oson C
505 20”
545-730 211/2”- 28 3/4” 395-445 151/2”- 171/2”
655 25 3/4”
530 20 3/4”
400-525 15 3/4”- 20 3/4”
Office swivel chair conforming to EN 1335. Automatic synchronised mechanism with fine-tuning adjustment. Chair can be locked into different positions (Stopand-Go mechanism). Forward tilt. Height-adjustable backrest (range 5 cm) for adaptation of lumbar support. Seat depth adjustment (range 5 cm). Seat and back material polyurethane foam cushion. Armrest support and backrest brace made of polyamide in the colours warm grey or basic dark. Armrest pad made of polyurethane foam in basic dark. Base in three versions: polished pressure-cast aluminium, solid plastic (basic dark) flat (logistics version) or ascending. Knitted upholstery fabric, Clima-Seat available at additional cost. Oson bears the ergonomic seal of approval from the LGA Nuremberg. Oson S: cover fabric in Ora (Trevira CS) or leather. With or without fixed armrests. Oson C: cover fabric Ora (Trevira CS) or knitted. With or without armrests which are adjustable in height and angle. Oson CE: cover fabric Ora (Trevira CS) or knitted. Backrest: polyamide frame, upholstered over stretched netweave cover. With or without armrests which are adjustable in height and angle. Armrest pad available in two sizes.
820-995 321/4”- 39 1/4” 410-465 161/4”- 18 1/4”
All measurements in millimetres and inches
910-1085 35 3/4”- 42 3/4” 500-550 19 3/4”- 21 3/4”
Oson Programme features
380 15”
Leather Oson S
Ora Oson S, Oson C, Oson CE Deviations in colour are possible due to the printing process.
Knitted fabric Oson Oson C*, Oson CE*
*backrest only
Also available in fabric quality Polo by Kvadrat. Sample card available upon request.
Vitra International AG, Birsfelden, CH | Vitra Ges.m.b.H., Wien, A | NV Vitra Belgium SA, Diegem, B | Vitra AG, Birsfelden, Showroom: Zürich, CH | Vitra koncept, s.r.o., Praha, CZ | Vitra GmbH, Weil am Rhein, D | Vitra Hispania S.A., Madrid, Showroom: Barcelona, E, Lisboa, P | Vitra, Paris, F | Vitra Ltd., London, GB | Vitra International AG, Budapest, HU | Vitra International AG, Mumbai/Bangalore, IN | Vitra (Nederland) B.V., Ouderkerk aan de Amstel, NL | Vitra Scandinavia AS, Oslo, N | Vitra International AG, Warszawa, PL | Vitra Furniture (Shanghai) Co., Ltd., Shanghai, PRC | Vitra Furniture Pte. Ltd., Singapore | Vitra Inc., New York, Culver City, San Francisco, Chicago, USA | email: info@vitra.com | www.vitra.com 2007, Art.-Nr. 097 544 07
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