Materials
Full-grain top leather, vegetable-tanned suedes, and engineered performance fabrics that resist staining without giving up hand-feel. Padding favors high-resilience foam wrapped in down or fiber for cushions that recover instead of compress.
Craftsmanship
Kiln-dried hardwood frames joined with dowels, glue, and corner blocks. Eight-way hand-tied springs in upholstered pieces. Mechanisms rated for tens of thousands of cycles, with whisper-quiet motors and soft-stop limits.
Customization
Configurable seat width, recline depth, lumbar tuning, headrest height, leather color, stitch contrast, base lighting color, and arm style. The best studios will let you specify nearly every variable.