tretford INTERLIFE stands for high longevity under extreme conditions. Its pile material consists of 70% Cashmere goat hair and 30% polyamide, a blend that meets the requirements for Class 33 – Heavy Commercial Use. INTERLIFE is thus a perfect choice for use in offices, daycare centers, hotels – but also for private residences. Forty colors are available to choose from for broadloom, carpet tiles and carpet floorboards.