SuperLooper is one of many companies that lets you rent good quality clothing, then just return it and it’s passed on, as your own children grow. Everything is clean with small repairs made. There are clothes from 0 to 7 years, often quality organic brands. You can also donate children’s clothing to help families in need. Stripey Stork has a nationwide list of baby banks.
A few items may contain synthetic fibres (launder in a microplastic catcher). For baby clothing, The Lullaby Trust has information on suitable clothing (and bedding) to help prevent crib death.
Organic cotton is not just better for the planet, but also good for children, as the lack of chemicals means they are usually gentler on skin, especially for children with eczema.
And although organic cotton clothing costs a little more, they last longer as the fibres have not been treated with chemicals.