Size Guide
Size guide description
Size | Collar | Chest |
---|---|---|
S | 14.5" | 36" |
M | 15.5" | 40" |
L | 16.5" | 42" |
XL | 17.5" | 44" |
2XL | 18.5" | 46" |
3XL | 19.5" | 50" |
4XL | 21" | 54" |


Guardian Thermal Round Neck T-Shirt – Essential Warmth and Comfort for Cold Weather
Stay warm without compromising on comfort with the Guardian Thermal Round Neck T-Shirt, a must-have men’s thermal base layer designed to provide exceptional insulation while remaining breathable and lightweight. Crafted from advanced heat-retaining fabric, this thermal undershirt traps body warmth while allowing airflow, ensuring you stay cozy and dry all day.
Designed for winter layering, this long-sleeve or short-sleeve thermal t-shirt fits seamlessly under sweaters, jackets, or workwear, offering a snug yet flexible fit. Whether you're working outdoors, commuting in cold weather, or relaxing at home, this soft and stretchable thermal top delivers unparalleled warmth and comfort.
Features:
✅ Heat-retaining thermal fabric – Locks in warmth for all-day comfort
✅ Breathable and moisture-wicking – Keeps sweat away, ensuring dryness
✅ Lightweight and flexible – Ideal for layering without bulk
✅ Soft and stretchable material – Provides a snug yet non-restrictive fit
✅ Durable and easy to maintain – Designed for long-term wear
Don’t let the cold affect your day. Upgrade your winter wardrobe with the Guardian Thermal Round Neck T-Shirt, offering warmth, breathability, and ultimate comfort.
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Cotton Care
For men’s cotton shirts and garments, wash in cold or warm water using a mild detergent, avoid bleach, tumble dry on low or line dry to prevent shrinkage, and iron while slightly damp for best results.
Wool Fabric Care
To care for men’s wool jumpers, suits, and knitwear, hand wash in cold water or use a wool cycle with a wool-safe detergent, always lay flat to dry, steam out wrinkles instead of ironing, and store garments folded to avoid stretching.
Man-Made Fabric Care (Polyester, Nylon, etc.)
Men’s clothing made from man-made fabrics like polyester or nylon should be machine washed cold, dried on low or air-dried to avoid heat damage, ironed on a low setting or steamed if needed, and benefits from being wrinkle-resistant and low-maintenance.
All orders are processed and shipped with Royal Mail within 2 business days, except when an order is received during a holiday period, the order is then shipped on the next working day after said holiday.