Calibrating the exact proportions of a sofa to fit a space, Collar adds a version that falls in-between a loveseat and a standard-size model. With the same voluminous profile, Collar 2.5 extends Cologne-based designer Meike Harde's deeply comfortable seating with its wide wedge armrests and wraparound memory foam cushioning. With upholstery available in a wide selection of elevated textiles, the sofa's slender metal legs add a clean-lined finish.