While the temperature has inched up a couple of degrees since last week's cold snap, there's no doubt winter is lurking. To help us stay warm for what's bound to be a chilly couple of months, Japanese retailer Uniqlo is giving away garments made from its fancy Heattech fabric, for free.

Between 7am and 7pm this Friday June 14, head to Martin Place, where you won't be able to miss a giant Uniqlo T-shirt installation. Pop inside to have a thermal Polaroid taken, which will be printed with a unique code. Take it in to Uniqlo in the MidCity Centre shopping mall and redeem it for a free Heatteach item.

The range is designed to help your body generate heat and retain it, keeping you cosy whether you're in the snow or strolling Sydney's streets. It includes long-sleeve tees, singlets, leggings and tights.

Uniqlo's Martin Place installation will pop up from 7am to 7pm on Friday June 14.