An enormous amount of fossil fuel is used to fuel (excuse the pun!)
Is it made of fossil fuels? Does it contain more than just a small percentage of elastane, polyester, or nylon? If so maybe don't buy it. An enormous amount of fossil fuel is used to fuel (excuse the pun!) our clothing consumption habits. Go for plant-based materials, such as organic cotton, hemp, or linen. If bamboo is your favoured material, try to make sure it is from a mechanical, closed-loop system.