Gray upholstered chair on a beige background

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M1 Outdoor Armless Sofa Seat

Costco Price$479.99

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Overview

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For details on returns, shipping, warranty, and other common questions, please visit our FAQ Page.

Features

Deep-seat outdoor comfort with breathable SmartFoam support.
SolarWeave™ performance fabric survives UV, spills, and heavy use.
Quick-dry ventilation keeps cushions ready shortly after rain.
Low-profile modern design suited for patios, rooftops, or balconies.
Outdoor-rated slat base stays sturdy season after season.
Fade-resistant color system designed for long days in the sun.
Compact-box delivery for easy apartment or condo transport.
Works with all M1 Outdoor modules for future expansion.

Specifications

Width x Depth x Height

27.5 x 37.7 x 24.8 (in)
69.5 x 95.76 x 63 (cm)

Care

Blot Spills Immediately:
Our 100% polyester fabric has a spill-resistant finish, making it easy to blot spills with a paper towel. It is designed to resist damage, so spills will not harm it.

Treat Stubborn Stains:
If blotting does not lift the stain, dab gently with a damp cloth. Avoid rubbing—no harsh chemicals needed.

Do Not Remove Covers:
The covers are not meant to be removed. The treated fabric is low-maintenance and rarely needs washing.

Weatherproof by design

From sun to storms, the M1 Outdoor is built for real outdoor exposure. SolarWeave™ fabric resists UV, spills, and fading, keeping your outdoor sofa looking great through every season. EcoDry SmartFoam™ drains fast and stays comfortable — no sogginess, no mildew.

Elevated slat pads improve airflow under each module, helping water clear quickly and preventing moisture buildup. Paired with an outdoor-rated frame, the M1 Outdoor stays stable and supportive through heat, rain, humidity, and everyday use.

Smart inside and out

The inside of the M1 line is composed entirely of SmartFoam, a new material that adapts to your body and wears beautifully over time. It’s supportive yet light, which allows you to set it up quickly and rearrange when you want to. Then we wrap it in spill-proof Oeko-Tex® performance-weave fabric that will stand up to years of use.

Zip it and flip it

The M1’s modular design adapts to your space so it’s the perfect fit. The sections connect via zippers, so it stays locked in place once you’re happy with the arrangement. And when you’re ready to change it up, it easily comes apart.

Hyper Modularity

Designed for easy reconfiguration, each piece is lightweight yet sturdy, so you can rearrange or expand your sofa to fit your space. Whether you want to create a cozy corner or an expansive lounge, our modular low profile system adapts. Rearrange, expand, or simplify—no tools, no hassle, just pure flexibility.