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Via Seating

VIA Seating 4U Mesh Back Ergonomic Task Chair

VIA Seating 4U Mesh Back Ergonomic Task Chair

Regular price $604.00
Regular price Sale price $604.00
Sale Sold out
Ships within 10-14 business days

Customizations Total: $0.00

Via's 4U is a versatile task seating series that embodies sophisticated Italian design with full function ergonomics. The controls on this series auto adjust to the users’ body weight, and offer easy to use, body balance technology with the combined benefit of syncro tilt functionality. This blend of superior ergonomic function allows for active or passive ergonomic sitting positions. Because it is so easy to use, this series can be offered to both; task intensive or conference applications.

4U is offered with two distinct seat styles—original slim line design with seat pan and new enhanced comfort seat with extra height in the cushioning of the seat. Both are available in standard & large seat sizes.

This mesh back model features an elastomeric 4-way stretch offering optimal spine support and long term comfort. An adjustable lumbar option on the mesh back is available.

All models are available in a standard black frame or optional white frame. 

4U can be specified with an Auto-Adjust Body Balance Control, a Quick Adjust Synchro Control, or a high performance Enhanced Body Balance Control. All offer weight activated tension control, and an optional a seat slider. 

Two seat models, two seat sizes, five arm models and four base options are available.

4U is built with quality components; glass nylon reinforced frame structure, full metal case control, foam cushion is proprietary to Via & is covered in Via’s lifetime warranty. Chairs built with the Auto Adjust Body Balance and Quick Adjust Synchro controls enjoy a 300 lbs weight rating with the Slimline seat and 400 lbs with the Enhanced Comfort seat. The Enhanced Body control provides a 300 lb weight rating with either seat selection.

4U features sophisticated Italian Design with slim line profile. Multiple fabric/color choices available. 4U combines what is required by A&D in terms of aesthetics & what health & safety people require in terms of ergonomic flexibility & adjust-ability. This meeting on the minds allows for design & ergonomic considerations to be satisfied with one seating solution.

Fabrics - Vinyls - Leathers:

View Grades A & B Fabric Card - Grade A & Grade B Fabrics are recommended for task and multi-use seating. Each are tested by heavy-duty usage. All are Greenguard Certified™ and eligible for CHPS Low-Emitting Material Credits.

View Grade 1 Fashion Forward Fabric Card - Grade 1 Fashion Forward Fabrics offer more detailed patterns.

View Grade 1 Non-PVC Vinyl Card - Staple is a non-pvc textile made from polyurethane (polycarbonate and polyester resins). It offers enhanced abrasion resistance, a fluid barrier, an antimicrobial agent and is bleach-solution cleanable.

View Grades 3, 4, 6 Free of PVC Vinyl Card - Sustainable, free of PVC (Polyvinyl chloride) polyurethane and silicone based patterns. Each pattern is Greenguard Certified™ and eligible for CHPS Low-Emitting Material Credits. Patterns Rein II, Row, Silica and Tanner meet the criteria for the Practice Greenhealth’s Healthier Hospitals Safer Chemicals Challenge, Version 2.0. These products are free of formaldehyde, perfluorinated compounds, PVC, antimicrobials, and flame retardants.

View Grades 5, 6 Ultrafabrics Card - BRISA® – the first breathable performance fabric in its class with an exclusive ventilation system. BRISA® patterns feature sound absorption properties across a variety of styles. Discover ULTRALEATHER® – high performance fabrics redefining the experience of leather. Experience classic aesthetics and authentic softness in an animal-cruelty free fabric..

View Grades 5 - 8 Leather Card - Natural, full grain leather with an enhanced supple hand and wearability (grade 8), pre-embossed, top grain leather with a durable, protective UV finish (grade 6) or consistent leather patterning at a great price (grade 5).

Seat Models: Approx. Seat Size: Medium 20" x 19", Large 22" x 19"
Adjustable Lumbar:

Adjustable Lumbar User Guide

Arm Options:

4U Signature 6D (Black, White)
Height Adjustable Roll Back
Multi-Function (Black, White, Polished Aluminum)
Fixed Arm

Control Mechanisms:

Auto-Adjust Body Balance Control
Auto-Adjust Body Balance Control + Seat Slider

Stool Auto-Adjust Body Balance Control
Quick Adjust Advanced Synchro Control
Quick Adjust Advanced Synchro Control + Seat Slider
Quick Adjust Advanced Synchro Control + Seat Slider + Forward Tilt Adj.


Mesh Back Colors:
Stool Kit:

Includes footring and cylinder. Compatible only with Stool Auto-Adjust Body Balance control mechanism. Available in 7" (Tall) or 9.5" (Extra Tall) height range models.


Quick ship (QS) colors ship within 3-5 business days - All other colors ship within 2-4 weeks.

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