Costiera XL Backend Module

Designed by the globally celebrated Christophe Pillet, the Costiera XL backend module for Ethimo is the defining linear element of any grand-scale outdoor seating arrangement. At an impressive 280 cm in length, it functions as the expansive rear spine of a modular sectional, providing deep, generous seating and a commanding presence across large terraces, gardens, and poolside lounge settings.

Pillet’s design ethos — rooted in clarity of expression, optimized elegance, and the seamless interplay of sensuality and restraint — is fully evident in this piece. The XL backend module’s long, low profile reads as effortlessly composed rather than imposing, a quality that makes it as well-suited to serene residential gardens as it is to high-end hospitality environments.

The frame is available in textured matte Carbon or Silver metal, with the option of natural teak or Accoya® wood accents to introduce warmth and organic character. Accoya® is a premium modified wood prized for its outstanding dimensional stability and resistance to the elements — an ideal pairing with the precision-finished metal frame for demanding outdoor conditions. The module is offered in both left and right orientations, providing full flexibility when designing a bespoke configuration within the Costiera + Baia system.

Cushions are upholstered in outdoor-grade fabrics including the refined Maiorca polypropylene weave, engineered to resist fading, moisture, and wear across seasons without sacrificing comfort or aesthetic quality.

At Niche Beverly, we carry the Costiera collection as part of our curated selection of the world’s finest outdoor furniture. Visit our Los Angeles showroom or shop online to explore available finishes, orientations, and configurations.