Heatwave Thermalwear Men's Thermal Underwear Set 2 Pack Long Sleeve Top and Long Johns

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 Heatwave® thermal underwear set is crafted from an advanced insulating yarn, providing a high-performance level of insulation.
• Comfort Fit & Ribbed Construction — The ribbed construction of the thermal set shapes to the contours of your body, providing a snug yet flexible fit.
• Durable Material Blend — Made from a blend of 50% polyester and 50% cotton, this thermal set combines the best properties of both materials.

Materials

Made from a blend of 50% polyester and 50% cotton, this thermal set combines the best properties of both materials. Polyester provides durability and moisture-wicking capabilities, while cotton offers softness and breathability.

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” All sizes are approximate.

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.