When the cold bites, you need a base layer that works as hard as you do — genuinely warm, genuinely comfortable, and invisible under everything you wear.
Key Features
- High-Performance Fabric — These thermal t-shirts are crafted from a high-quality blend of 50% cotton and 50% polyester.
- Versatile Design — The Heatwave® Thermal T-Shirts are designed to be worn as a standalone outfit or as a base layer.
- Plus Size Options — Specifically tailored for plus-size individuals, these thermal t-shirts come in a range of sizes to ensure a perfect fit.
Materials
These thermal t-shirts are crafted from a high-quality blend of 50% cotton and 50% polyester. The cotton component provides a soft, breathable feel against your skin, while the polyester ensures durability and shape retention.
Colours Available
The Heatwave® Plus Size Thermal T-Shirts come in classic black, a timeless colour that pairs well with any outfit.
Sizes Available
Specifically tailored for plus-size individuals, these thermal t-shirts come in a range of sizes to ensure a perfect fit. The sizes available are 3XL, 4XL, 5XL, and 6XL. Finding the right fit is crucial for comfort and functionality. These plus-size options ensure that everyone can enjoy the benefits of this high-performance thermal wear.
Care Instructions
These thermal t-shirts are machine washable. For best results, please follow the care instructions on the packaging to maintain the quality and longevity of the fabric.
Perfect For
Perfect Christmas gift for outdoor enthusiasts, hikers, and skiers A thoughtful birthday treat for them who feels the cold Great Secret Santa present — practical, comfortable, always appreciated Ideal self-care gift for anyone who spends time outdoors in winter.
Frequently Asked Questions
Is this warm enough for skiing or outdoor sports?
Yes — the insulating yarn and brushed interior are engineered for cold-weather performance as a base layer for skiing, snowboarding, and hiking.
Can I wear this under everyday clothes?
Absolutely. The slim ribbed fit layers smoothly under jeans, trousers, or work attire without adding visible bulk.
Is it suitable for sensitive skin?
Yes — the hypoallergenic fibres are gentle and non-irritating for comfortable all-day wear.
What sizes are available?
Please refer to the Sizes Available section for the full range. If you're between sizes, we recommend sizing up for the most comfortable layering fit.
Is it machine washable?
Yes — machine wash at 40°C. Easy to care for, wash after wash.


