The Rio briefs are a classic cut made from cotton modal. This style combines the colors blue, magenta, orange, yellow and anthracite. The triangular shapes create a visual 3D effect. These briefs are ideal for both right and left-handed people thanks to the horizontal opening, HO1, a patented invention from Hom. These briefs are made from a blend of 47% natural cotton, 47% modal and 6% elastane. The fabric is supple, light, soft, and easy to care for. It also has antibacterial and temperature-regulating properties, is wrinkle-free, lint-free and resistant to repeated rubbing. These briefs are reinforced with a shell lining made from 92% cotton and 8% elastane. The Rio cut is wider and covers the hips more than micro-cut briefs. This style emphasizes the curve of the hips and moves with the body. The elastic waistband is flat and does not pinch. These briefs are Oeko-tex certified. This certification underlines the non-toxicity of the fabrics, yarns and base colors used in production.