Marks and Spencer's Heatgen Maximum Thermal Funnel Neck Top, priced at £25, has drawn comparisons to Lululemon's Adapted State Thermal Track Jacket, which is currently reduced from £138 to £104. The M&S top offers a similar sport-luxe look for £79 less than the discounted Lululemon price, and £113 less than the original price.
The top, available in sizes XS through XL, features a high-neck silhouette with a concealed zip. Designed to retain body heat without adding bulk, the fabric is described as ultra-soft and stretch-infused, providing insulation while remaining breathable for active wear.
Shopper reviews and fit feedback
The Heatgen Maximum Thermal Funnel Neck Top has an average rating of 4.3 out of five stars. One shopper commented: "Versatile thermal. Love the style of this with the zip neck," but noted, "Next time, I would buy the next size up, as the size I normally buy was a bit too snug."
Another shopper praised the design, saying: "First in this style but won't be my last - so warm, comfy and cosy, love the zip neck and thumb holes." A third added: "Great style and fit. And feels lovely, soft and cosy."
However, several reviewers echoed sizing concerns. One shopper explained: "These were very snug-fitting, so I had to send them back and order extra-large, which is mildly insulting but fits well. They are so comfortable, warm and wash really well."
Colour options and alternatives
The M&S top comes in black, bitter chocolate, and light cream. For those who prefer a crew neck, Uniqlo's HEATTECH Extra Warm Cashmere Blend T-Shirt (£22.90) is suggested as an alternative, available in a range of colours.
Shoppers have also requested more colour choices, with one saying: "More colours please." Another noted the top's practicality: "Lovely warm and cosy top with zip and thumb holes to keep the sleeves down. Smart enough to wear as a casual top."
