4-UP Chair
$1.00
4-UP Chair offers comfort and style in one sleek design. With its ergonomic construction and adjustable features, it provides personalized support for any workspace. Built to last with a modern aesthetic, it’s the perfect addition to any office or home setting.
- OPTIONS
OPTIONS
Options & Colors
Click the + signs or words below to see details on each option including frame colors & mesh.
Framework

Mesh

Groove

Upholstered
All 4u seats use Via Seating’s comfort foam. This is a proprietary blend of high-density,
injection-molded, closed-cell, cold-cured comfort foam » so durable and lasting it is backed by
Via
Seating’s 12 year warranty. Unlike traditional stacked foam pieces, Via’s seats are contoured to
maximize comfort and support where needed with a circulation supportive waterfall edge.Note: Dimensions for each seat size are width x depth of the seat measured off the chair. See the
Dimensions tab above for exact seat dimensions for each configuration.
Enhanced comfort medium (B)
20.5″ x 19.5″

Enhanced comfort large (C)
22.0″ x 19.5″

Slim line medium (B)
19.5″ x 19.0″

Optional black adjustable lumbar support #LS4B
Guide: watch » | pdf »
- Vertical position adjustment
- Available on mesh or groove backs

Optional white adjustable lumbar support #LS4W
Guide: watch » | pdf »
- Vertical position adjustment
- Available on mesh or groove backs

Adjustable lumbar support integrated in upholstered backs
Guide: watch » | pdf »
- Lumbar depth adjustment
- Available on mesh or groove backs

Single upholstery

Two-tone upholstery #U2:
- 1 textile for seat
- 1 textile for back
Available on upholstered backs only
Arms

Black signature 6-way arms
Guide: watch » | pdf »
- Height adjustment (up/down)
- Armrest position (back/forth)
- Armrest angle (in/out)

White signature 6-way arms
Guide: watch » | pdf »
- Height adjustment (up/down)
- Armrest position (back/forth)
- Armrest angle (in/out)

Black roll back arms
Guide: watch » | pdf »
- Height adjustment (up/down)
- Roll back feature

Black adjustable arms with optional add-ons
Guide: watch » | pdf »
- Height adjustment (up/down)
- Optional armrest position (back/forth)
- Optional armrest rotation (angle)
- Optional armrest width (in/out)

White adjustable arms with optional add-ons
Guide: watch » | pdf »
- Height adjustment (up/down)
- Optional armrest position (back/forth)
- Optional armrest rotation (angle)
- Optional armrest width (in/out)

Polished adjustable arms with optional add-ons
Guide: watch » | pdf »
- Height adjustment (up/down)
- Optional armrest position (back/forth)
- Optional armrest rotation (angle)
- Optional armrest width (in/out)

Standard armless

Black upright fixed arms
Control Mechanisms

Auto-adjust body balance
Guide: watch » | pdf »
- Height adjustment (up/down)
- Tilt limiter (4-position)

Auto-adjust body balance + seat depth adjustment
Guide: watch » | pdf »
- Height adjustment (up/down)
- Tilt limiter (4-position)
- Seat depth adjustment

Quick adjust synchro
Guide: watch » | pdf »
- Height adjustment (up/down)
- Tilt limiter (5-position)
- Back tension

Quick adjust synchro + seat depth adjustment
Guide: watch » | pdf »
- Height adjustment (up/down)
- Tilt limiter (5-position)
- Back tension
- Seat depth adjustment

Quick adjust synchro + seat depth adjustment + forward tilt
Guide: watch » | pdf »
- Height adjustment (up/down)
- Tilt limiter (5-position)
- Back tension
- Forward tilt

4-UP: Sit-to-stand telescoping gaslift with a footrest
Guide: watch » | pdf »
Coming soon!

Tall stool using a body balance mechanism
Guide: watch » | pdf »
- Height adjustment (up/down)
- Tilt limiter (5-position)
- Back tension
- Seat depth adjustment

Quick adjust synchro + seat depth adjustment + forward tilt
Guide: watch » | pdf »
Footrest Guide: watch »
- Height adjustment (up/down) – vertical range 7.5″
- Tilt limiter (3-position)
- Repositionable footrest

Extra-tall stool using a body balance mechanism
Guide: watch » | pdf »
Footrest Guide: watch »
- Height adjustment (up/down) – vertical range 7.5″
- Tilt limiter (3-position)
- Repositionable footrest
Bases

Black 5-star base

White 5-star base

Polished 5-star

Black carpet casters

Black carpet casters + safety brake
Safety brake feature that locks the caster when the user gets out of the chair

Grey-black all floor casters

Grey-black all floor casters + safety brake
Safety brake feature that locks the caster when the user gets out of the chair

Black glides
Colors

Matte black

Matte white

Black mesh

Graphite mesh

Stardust mesh

Black copper mesh

Natural copper striped

Black groove

Dark grey groove

Light grey groove
- TEXTILES
TEXTILES
Origin

Origin Alloy

Origin Amethyst

Origin Annatto

Origin Arundel

Origin Basalt

Origin Eureka

Origin Euro

Origin Fez

Origin Gaia

Origin Iron

Origin Jet

Origin Mikan

Origin Poppy

Origin Sapphire

Origin Steel
Insight

Insight Ebony

Insight Fossil

Insight Midnight

Insight Periwinkle

Insight Realred

Insight Summit

Insight Wasabi
- ALL SYMBOLS
ALL SYMBOLS
Model Formats 770-35C-11DR-0A 770-35C-11DR-33A 770-35C-11DR-38A6 770-35C-11DR-39A6 770-35C-11DR-46A 770-35C-11DR-51A20 770-67C-0A 770-67C-33A 770-67C-38A6 770-67C-39A6 770-67C-46A 770-67C-51A20 770-74C-0A 770-74C-33A 770-74C-38A6 770-74C-39A6 770-74C-46A 770-74C-51A20 772-35C-11DR-0A 772-35C-11DR-33A 772-35C-11DR-38A6 772-35C-11DR-39A6 772-35C-11DR-46A 772-35C-11DR-51A20 772-67C-0A 772-67C-33A 772-67C-38A6 772-67C-39A6 772-67C-46A 772-67C-51A20 772-74C-0A 772-74C-33A 772-74C-38A6 772-74C-39A6 772-74C-46A 772-74C-51A20 780-35C-11DR-0A 780-35C-11DR-33A 780-35C-11DR-38A6 780-35C-11DR-39A6 780-35C-11DR-46A 780-35C-11DR-51A20 780-67C-0A 780-67C-33A 780-67C-38A6 780-67C-39A6 780-67C-46A 780-67C-51A20 780-74C-0A 780-74C-33A 780-74C-38A6 780-74C-39A6 780-74C-46A 780-74C-51A20 782-35C-11DR-0A 782-35C-11DR-33A 782-35C-11DR-38A6 782-35C-11DR-39A6 782-35C-11DR-46A 782-35C-11DR-51A20 782-67C-0A 782-67C-33A 782-67C-38A6 782-67C-39A6 782-67C-46A 782-67C-51A20 782-74C-0A 782-74C-33A 782-74C-38A6 782-74C-39A6 782-74C-46A 782-74C-51A20 785-35C-11DR-0A 785-35C-11DR-33A 785-35C-11DR-38A6 785-35C-11DR-39A6 785-35C-11DR-46A 785-35C-11DR-51A20 785-67C-0A 785-67C-33A 785-67C-38A6 785-67C-39A6 785-67C-46A 785-67C-51A20 785-74C-0A 785-74C-33A 785-74C-38A6 785-74C-39A6 785-74C-46A 785-74C-51A20 787-35C-11DR-0A 787-35C-11DR-33A 787-35C-11DR-38A6 787-35C-11DR-39A6 787-35C-11DR-46A 787-35C-11DR-51A20 787-67C-0A 787-67C-33A 787-67C-38A6 787-67C-39A6 787-67C-46A 787-67C-51A20 787-74C-0A 787-74C-33A 787-74C-38A6 787-74C-39A6 787-74C-46A 787-74C-51A20 - GALLERY

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