When Nike unveiled its original Air Max in 1987, Margaret Thatcher was prime minister and Ronald Reagan was in the White House. At first glance not much has changed in 30 years – the UK has a female Conservative PM, a former TV star is the US president and Nike’s revolutionary trainers still have those innovative air-cushioned soles. But look closer and the changes are obvious (to the shoe, at least). Nike has taken a technological leap with the new Air VaporMax, making the entire air pocket a standalone unit – removing the need for a bulky rubber midsole – to create a lightweight and flexible trainer that never compromises its consistent cushioning. £TBC,store.nike.com