Because of the down fall of fast retail shops, H&M is an example of a slow growing sale store. From online stores like ASOS and Boohoo, which have reduced supply-chain times to as little as one week and are able to roll out new styles extremely quickly. It's also losing out to rival fast-fashion stores such as Zara, which offer better quality clothing at a higher price point. 

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Online thrift store ThredUp, which sells a range of secondhand clothing from stores such as J.Crew and designers like Chloe, launched in 2009 and now sells 30,000 items every day; nearly 10 million were sold in 2017 alone. This is because fashion has created a craving for vintage clothes again like some brands such as Calvin Klein, Gap, and Ralph Lauren and it has revived their archive collections. Nobody wants to buy £100 and odd pounds on Levi jeans, so Thredup decided to create a new collection called Levi's Authorised Vintage, which consists of 50,000 Levi's jeans from the 1960s, '70s, and '80s. But millennial's aren't only shopping for vintage styles in thrift stores, they're also donating to them as a goodwill; it recycles clothing and less waste is being made. 

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Business insider says "Fast-fashion clothing has created a big issue with waste. According to the US Environmental Protection Agency, 26 billion pounds of textiles end up in a landfill each year. The fashion business is the second-most polluting industry after oil. According to The World Economic Forum, it takes 2,700 litres of water to produce a T-shirt."  I think thrift shops are a good way to recycle and re-use old clothing, but instead of using thrift shops to sell my products, I would want to recycle and re-use my own clothing with my own way of selling them.