Case Tanso armchair in FSC-certified solid wood, designed by Shin Azumi, B Corp certified.
Sustainability verified

Tanso Arm Chair

Case
Sale price$770.00
In Stock Items ship within two weeks

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Tanso Arm Chair

Designed by David Irwin, the Tanso Armchair is a study in restraint, craftsmanship, and material honesty. Inspired by the simplicity of Japanese furniture, the design elevates outdoor seating through careful proportions and refined detailing rather than excess. Constructed from Grade A solid teak, the armchair is naturally weather-resistant and low maintenance, making it well suited for outdoor use—yet its clean lines and thoughtful construction allow it to transition seamlessly indoors. This is sustainable outdoor furniture designed with longevity in mind, both in materials and aesthetic. What sets the Tanso Armchair apart is its quiet intelligence.

Subtle angles in the flat teak seat boards allow rainwater to run off efficiently without compromising comfort, reinforcing Irwin’s focus on how and why things are made. Used on its own, the chair makes a sculptural statement; paired with the Tanso sofas, it completes a cohesive outdoor lounge arrangement. It also mixes effortlessly with other teak outdoor furniture, making it an adaptable choice for patios, terraces, or indoor-outdoor living spaces where durability and design are equally important. Built to last, the Tanso Arm Chair is a long-term investment in both your space and a more sustainable way of living. Available at Comosum.

Case +

Case Furniture is a pioneering British brand that seamlessly blends modern design with sustainability and high-quality craftsmanship. Founded in 2006 by industry visionary Paul Newman, Case has transformed the furniture landscape by making exceptional, eco-friendly design accessible to everyone. Collaborating with renowned designers like Matthew Hilton, Robin Day, Shin Azumi, and Eleanor Pritchard, they create timeless pieces that elevate any home. Each product balances style and function, utilizing modern manufacturing techniques and carefully sourced materials—including recycled components and FSC-certified wood—ensuring you never have to choose between quality and price.

Committed to ethical practices and environmental responsibility, Case partners with top factories worldwide that uphold fair wages and excellent working conditions, many boasting certifications for their sustainable methods. Their dedication to durability means crafting furniture designed to last a lifetime, embodying the belief that longevity is the ultimate form of sustainability. With a global presence through esteemed retailers like John Lewis, Design Within Reach, Liberty, and Heal’s, Case Furniture continues to shape the future of sustainable living. Experience the fusion of timeless design and eco-friendly innovation with Case—where sustainable furniture isn't just a choice, but a commitment to a better world.

Shipping & Returns +

Ships within 2 week

2 Year Warranty

Country of Production +

Thailand

Dimensions +

H 31.6” × W 25.9” × D 21.7”

Care Guide +

To prolong the life of the product and retain its appearance and functionality, This unit is manufactured from solid wood. Craftsmen manufacture this product and there is variety between each unit. This is because wood is a natural product, with natural colour and grain variations.
Natural timber is affected by sunlight; this can can the wood colour to darken. It is recommended that no abrasive cleaners or solvents are used to clean the unit.

Case

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Crafted with Care

From responsible materials to skilled hands - watch how quality is created

FDB Møbler: Danish Craftsmanship

See how timeless Danish design comes to life from raw FSC-certified wood to finished furniture.Highlighting the heritage of FDB Møbler, this video takes you inside the workshop where classic Danish modern pieces are produced with sustainable materials and meticulous attention to detail — rooted in a legacy of design since 1942.

Ethnicraft: The Journey of Solid Wood

From sustainable forests to finely crafted pieces — the making of Ethnicraft furniture.Discover Ethnicraft’s global production process as wood is selected, milled, and shaped across specialized workshops to create signature furniture that blends traditional woodworking with contemporary design.

Greenington: Bamboo Furniture

From forest to finished piece — the sustainable craft of Greenington bamboo furniture.This video showcases how Greenington uses responsibly harvested bamboo and certified eco-friendly processes to create durable, beautiful furniture while minimizing environmental impact.

Made to last chosen with intention.

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.