Primark's £6 Heat IQ thermal leggings have gone viral online, with shoppers praising them as a budget-friendly way to stay warm and reduce heating costs this winter.
The high street retailer's 'Heat IQ' collection has been attracting attention on social media. Starting at just £6, the Heat IQ Leggings are selling quickly. The range comes in three warmth levels: 'Warm', 'Extra Warm', and 'Max Warm'.
Primark says the collection is "made with Heat IQ technology" for "maximum warmth retention". Wearing thermal or fleece-lined leggings at home is seen as a practical way to stay cosy while allowing people to turn down the thermostat and lower heating bills.
Money-Saving Advice and Social Buzz
Money-saving expert Martin Lewis and his team at MoneySavingExpert (MSE) support the idea of "heating the human, not the home" as an effective way to cut costs. The approach is simple: warming your body directly or keeping your own body heat is more cost-efficient than paying to heat the air in an entire room.
Online, Primark's thermal leggings are being celebrated as a budget solution for winter. On forums such as Mumsnet and Reddit, shoppers are calling them a 'winter game-changer'. They are especially popular for activities like remote working, school drop-offs, and outdoor walks. Some holidaymakers have said the thickest versions work well in freezing conditions, including winter trips to Lapland.
On Facebook, content creator Laura Primark Finds posted about the leggings, featuring the flared variety, which has gained thousands of likes and responses. In her caption, she wrote: "Primark's viral Heat IQ Leggings?! These have gone absolutely MAD recently, and I've just spotted they now have £8 FLARED and WIDE LEG versions too! Barely any sizes left in my store in the wide leg style!"
In the comments, one customer remarked: "I got them last year when they weren't called this, so comfy I got two." Another said: "This is what we need for winter!" while a third added: "They are sooo comfy." Another user noted: "The fluff on these is crazy, they have been washed a few times and still fluff everywhere, super cosy and comfortable though."
Warmth Levels and Practical Limits
Primark offers three warmth levels in its Heat IQ collection. The basic 'Warm' leggings are slim and lightweight, designed to be worn under regular jeans or office trousers. The 'Extra Warm' version has a brushed-fleece lining that protects against harsh winds. The heaviest option is the 'Max Warm' velvet-plush legging, which has a thick, faux-fur interior meant to preserve body warmth. Both the fleece and velvet designs are substantial enough to be worn as standalone trousers.
Some shoppers have noted that because the leggings are made from budget-friendly synthetic materials rather than merino wool, the fabric can start to bobble or pill after several washes. They are also not suitable for intense exercise because they lack moisture-wicking properties. If worn during demanding activities like hiking or skiing, the material may retain dampness and leave the wearer feeling cold.
Full Range and Availability
In addition to the core leggings, Primark is selling Heat IQ thermal flare leggings, velvet plush tights, a fleece top, a zip fleece top, a quarter-zip fleece top, a thermal crew-neck top, a base layer top, a jumpsuit, and a high-neck long-sleeve top. The full range is available to view on the Primark website.
Primark describes the long-sleeve thermal fleece top as crafted with "Thermolite technology to keep you extra warm this winter". About the quarter-zip fleece, the retailer states: "With a body-skimming silhouette, a high neckline and thumb holes. Made from Heat IQ for maximum heat retention."
Customers can browse the latest styles on the Primark website, though purchases must be made either in-store or through Primark's Click and Collect service.
