‘Ultra-rare’ pair of Apple trainers on sale for $50,000

Sotheby's selling one of firm's most obscure products, thought to have been custom-made for employees

One lucky shopper with US men's 10.5-size feet and $50,000 (38,969) to spare will be able to buy one of Apple's earliest and most obscure products - trainers.

The auction house Sotheby's is selling the ultra-rare" Apple-branded trainers, which are believed to have been custom-made for employees in the late 80s or early 90s, on its website.