Tribù only uses high grade virgin polypropylene compound for the production of the Vintage and Branch collection. The mass dyed PP is made anti-static, anti-fungal, frost resistant and stain repellent by the addition of additives. Also, contact with salt or chlorine water causes no problems. A very high percentage of UV stabilizing additives guarantees extremely high colour fastness, even after a long exposure to sunlight. Sharp objects should be avoided as they may cause scratches.