Heatwave Thermalwear Men's Thermal Underwear Set 2 Pack T Shirt And Long Johns Brushed
Dispatched by the maker. UK delivery & returns.
Why We Love This Product
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
- Advanced Insulating Yarn — The thermal underwear is crafted from an advanced insulating yarn that offers a 0.45 tog rating.
- Soft Brushed Inner — The inner layer of the thermal underwear is soft brushed, providing an extra layer of comfort against the skin.
- Seam-Free Design — The tops are designed to be side seam-free, enhancing comfort and reducing potential chafing.
Colours Available
White, Blue, Charcoal, Black, Navy, Grey
Sizes Available
Top (Chest Size) 34-36” : Long John (Waist Size) 29-32” Medium: Top (Chest Size) 37-39” : Long John (Waist Size) 33-35” Large: Top (Chest Size) 40-42” : Long John (Waist Size) 36-38” X-Large: Top (Chest Size) 43-45” : Long John (Waist Size) 39-42" XX-Large: Top (Chest Size) 46-48” : Long John (Waist Size) 43-45”
Care Instructions
Machine washable at 40°C Can be tumble dried Wash dark colours separately.
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.
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Need some help?
If you have any questions or problems, please contact us first via chat, info@collectivesgroup.co.uk, or 07752 913689.
We are here to help you and can usually provide a quicker response this way.
Materials & Care
Each item in Found in Britain is made or supplied by an independent British maker, using materials chosen for their suitability, quality, and intended use.
Care instructions vary by product and maker. Where applicable, please follow the guidance provided to help maintain the appearance, performance, and longevity of your purchase.
Shipping & Returns
Orders are fulfilled by independent British makers or their appointed partners. Dispatch times and delivery methods may vary depending on the item and its origin.
Where applicable, returns are accepted in line with UK consumer regulations. Please note that certain items, such as custom-made or hygiene-sensitive products, may be excluded from standard return rights. Full details are provided on individual product pages.