Exclusive line of heat reactive tees hits the high street fashion retailer.
Smiley has joined forces with apparel licensee Poetic Gem to create an exclusive line of heat reactive t-shirts for Topshop.
The tees subtly reflect changes in temperature to alter the appearance of the shirts throughout the day.
Recently launched into Topshop stores across the UK and online, the collection of oversized tees all feature the iconic Smiley icon.
The company has said the range has been a hit with holiday makers and festival goers throughout the UK this summer.
Want to read more news like this? Simply sign up to our daily digest by clicking here. You can also follow @LicensingSource on Twitter.