There are several sustainable materials gaining attention in the latest activewear trends:Recycled polyester: Recycled polyester is made from recycled plastic bottles, helping to reduce waste and lowering the demand for virgin polyester production.Econyl: Econyl is a regenerated nylon yarn that can be made from recycled materials such as plastic waste, abandoned fishing nets, and fabric scraps.Organic cotton: Organic cotton is grown without using synthetic pesticides and fertilisers. It's a healthier practise for soil growth and reduces the environmental impact of traditional cotton farming.