Free Bio-Flex GlovesGet a FREE Bio-Flex Nitrile or Latex Gloves. All of their gloves are anatomically designed for a comfortable fit and far exceed FDA standards. In recent years, nitrile gloves and other latex-free gloves are becoming more popular. Many glove wearers and those who come in contact with gloves have an allergy to natural rubber. Due to the COVID-19 outbreak and its impact on the global supply chain, Bio-Flex gloves are in limited supply. US only.