Square neck, high cut swimsuit. made from biodegradable polyamide knit. regenerate life flag. biodegradable polyamide has no toxic components and is free of heavy metals, certified and tested by astm method/standard e1963 – standard guide for conducting terrestrial plant toxicity tests. the manufacturing process of this fabric is what we call a closed water cycle, meaning that 100% of the water is treated and reused. in addition, when this product is at the end of its life cycle, after being worn for many years, it can be discarded in a landfill and will decompose entirely in an average of 3 years, while traditional polyamide takes around 50 years to do so, as proven by astm d5511 – standard test method for determining anaerobic biodegradation of plastic materials under high-solids anaerobic-digestion conditions.