These gloves are made of resin that biodegrades in soil and sea water, making them environmentally friendly. These gloves are made of 100% plant derived resin (Kaneca biodegradable polymer Green Planet), which contributes to global warming. These gloves do not use traditional petroleum resins for carbon neutrals. If you put it in a microbiological garbage disposer (compost), it will biodegrade. Can also be used for cooking. Biodegradable Polymer Green Planet is a material that is 100% derived from plants developed by Kaneca Co., Ltd. and is biodegradable in the ocean and in the soil. It is a material that contributes to the achievement of a low carbon society, and solving marine pollution issues.