Mater Eternity Arm Chair in FSC-certified oak, designed by Eva Harlou, B Corp certified Danish design
Mater Eternity Arm Chair in FSC-certified oak, designed by Eva Harlou
Mater Eternity Arm Chair in FSC-certified oak, designed by Eva Harlou
Sustainability verified

Eternity Arm Chair

Mater
Sale price$624.00
In Stock Items ship within two weeks

Eternity Arm Chair

Designed by Mater, the Eternity Arm Chair features a seat crafted from Mater's Matek composite—recycled coffee waste bound with ABS bioplastic—supported by a frame made from 20% recycled steel with a gunmetal powder-coated finish. Its generous proportions and armrests make it a comfortable choice for dining rooms, offices, and living spaces. Crafted with recycled coffee waste composite and recycled steel, it's part of Mater's commitment to sustainable, long-lasting furniture.

Available in Coffee Waste Black, Dark, Light, and Wood Waste Grey finishes, each chair tells a unique sustainability story through its material pattern. Material choices like upcycled coffee waste composite and recycled steel speak to Mater's focus on quality and environmental responsibility. The Eternity Arm Chair is built to hold up over years of daily use, reducing the cycle of replacement that drives waste. Choosing well-made furniture is one of the simplest ways to live more sustainably without sacrificing style or comfort. Available at Comosum.

Mater +

Mater is a Copenhagen-based design house pioneering sustainable innovation since 2006. Every piece tells a sustainability story—from FSC-certified wood and recycled ocean plastic to upcycled coffee waste and reclaimed mango wood. Collaborating with visionary designers, Mater fuses high-quality craftsmanship with environmental ethics, creating furniture that respects both people and planet.

Shipping & Returns +

In Stock Items Ship Within 7-10 Business Days * We will contact you to confirm any extended lead times for out of stock or backorder items

Country of Production +

Latvia

Dimensions +

Width: 23.2"
Depth: 21.7"
Height: 34.4"
Seat Height: 18.5"
Seat Depth: 16.9"
Arm Height: 26.8"

Care Guide +

To maintain the finish quality of your Mater product, please follow the care and cleaning procedures provided. Dust regularly with a soft, dry cloth. For wood surfaces, use a damp cloth with mild soap and dry immediately. For recycled composite surfaces, wipe with a damp cloth. Avoid harsh chemicals, abrasive cleaners, and prolonged sun exposure. Re-oil wood products periodically as needed.

Mater

Shipping and Returns

Shop with confidence. Learn more about our shipping process, delivery estimates, and hassle-free return policy.

Shipping Info

Free shipping on orders over $1,500. Standard delivery to all 48 contiguous states. White Glove delivery available for large items. Check individual product for lead time.

Returns

You can return items in unused condition within 30 days (or check the product page for specific terms).

Warranty

This product includes a manufacturer warranty. Contact us at Hello@comosum.co for claims.

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Comosum's Ethos

At Comosum, we don’t just list any product; we meticulously curate them. Every piece at Comosum is selected for its quality, responsible materials, and long-term use in real homes. That means no throwaway items, no fast furniture, and no hidden shortcuts in craftsmanship. When you buy from us, you’re choosing pieces built to last, made by makers who stand behind their work so you can feel confident bringing them into your home.