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The right men’s thermal wear is essential for staying warm, dry, and comfortable in cooler conditions. Whether you’re hiking, camping, or layering up for everyday winter wear, thermals act as a base layer that helps regulate body temperature.
At Vast Outdoors, our range of men’s thermals is designed for performance and comfort in Australian conditions. We stock high-quality options from trusted brands like Mons Royale, Icebreaker, XTM, and 3 Peaks, known for reliable insulation and moisture management.
Our men's thermals are made from materials like merino wool and advanced blends that offer natural warmth, breathability, and odour resistance. These fabrics help keep you warm in cold conditions while allowing excess heat and moisture to escape during activity.
Key features of men's thermals include lightweight construction, soft fabrics for all-day comfort, and flexible designs that move with your body. Whether you need a lightweight base layer for mild weather or a heavier option for colder conditions, our range offers insulation levels for every need.
With over 20 years of experience, we focus on men’s thermal wear that delivers practical performance without compromising comfort. Explore our collection and find men’s thermal wear that keeps you warm, dry, and ready for any outdoor activity.
A slim-fit shirt made with a blend of soft merino wool and Corespun that is breathable and delivers...
A slim-fit top made with a blend of soft merino wool and Corespun that is breathable and delivers...
The Men's Heavyweight Grid Fleece Bottom is crafted from Le Bent's 280gm Signature Merino Blend fabric that melds...
The Men's Heavyweight Grid Fleece Crew is crafted from Le Bent's 280gm Signature Merino Blend fabric that melds...
Ultimate warmth. Designed for the coldest days and the biggest adventure. Olympus is Mons' warmest baselayer offering unrivalled...
Ultimate warmth. Designed for the coldest days and the biggest adventure. Olympus is Mons' warmest baselayer offering unrivalled...
Your all access pass, taking you from one mission to the next. Crafted from ultra-breathable Merino Air-Con, it...
Ultimate warmth. Designed for the coldest days and the biggest adventure. Olympus is Mons Royale's warmest base layer...
A versatile men’s merino wool base layer shirt, the 200 Oasis Long Sleeve Crewe combines casual comfort with...
Soft, comfortable and versatile for a wide variety of active pursuits, the Merino Blend 125 Cool-Lite™ Sphere Long...
The original loose fitting base layer with 100% natural warmth. The technical performance of merino matched with uncompromised...
XTM Merino boxers are the ideal base layer for both summer and winter. This 170gm lightweight underwear is...
Made with a blend of ultra soft Yak wool and premium Merino wool, 3 Peaks have created a...
Upgrade your wardrobe with the Men’s Merino Synthesis Mid Jacket, where luxury, warmth, and performance converge. Crafted from...
A most versatile, go-anywhere crew made from breathable 100% merino wool jersey, the 200 Oasis Short Sleeve Crew...
A base layer guaranteed to warm your core. The Men's Core Midweight Crew is crafted with our 260gm...
A mid layer with ultimate warmth to weight ratio. Merino Gridlock fabric traps heat and manages moisture to...
Arcadia is a real all-rounder: a versatile mid-layer for ultimate warmth and maximum performance on every adventure. The...
Temple is an active base layer designed for year-round conditions. It is lightweight, has a slim fit and...
Made to move, the Cascade provides all the warmth of merino with a four-way stretch. Cascade has been...
Made to move, the Cascade provides all the warmth of merino with a four-way stretch. Cascade has been...
Midweight base layer bottoms perfect for skiing, winter hiking, or cold-weather layering, the 260 Tech Leggings are a...
A warmer, midweight version of the best-selling Oasis, the 260 Tech Long Sleeve Crewe is a go-to piece...
A warmer, midweight version of Icebreaker's best-selling Oasis, the 260 Tech Long Sleeve Half Zip is a go-to...
Arcadia is a real all-rounder: a versatile mid-layer for ultimate warmth and maximum performance on every adventure. The...
Icon is the perfect year round staple. It excels both on and off the mountain in all conditions....
The Men's Core Lightweight Bottom is the first building block for comfort in mild to cool temps. The...
Active men’s base layer bottoms made from 100% merino wool jersey, the 200 Oasis Leggings are Icebreaker's best-selling...
A versatile men’s merino wool base layer shirt, the 200 Oasis Long Sleeve Crewe combines casual comfort with...
The Men's Core Lightweight Crew Base Layer is the first building block for comfort in mild to cool...
The Merino men's pants are made from 100% fine Australian Merino Wool and at 230gm are the perfect...
The Merino men's crew neck top is made from 100% fine Australian Merino Wool and at 230gm is...
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Men's Thermals: Merino Wool or Polypropylene for Your Needs
Merino wool and polypropylene are both popular materials for men's thermal wear. Merino wool is a soft, natural fiber that is known for its insulating properties and ability to regulate body temperature. Polypropylene, on the other hand, is a synthetic material that is lightweight, moisture-wicking, and quick-drying.
Merino wool is a popular choice for those who want a natural, sustainable material that is soft and comfortable against the skin due to it's breathability. It is also naturally odour-resistant, making it a good choice for extended wear. Merino wool thermals can be more expensive than polypropylene thermals, but they are often considered to be more durable and longer-lasting.
Polypropylene thermals are a good choice for those who need a lightweight, sweat-wicking material that can handle intense physical activity. Polypropylene is a synthetic material that is made to be durable and moisture-wicking, making it a good choice for outdoor activities like hiking, skiing and paddling. Polypropylene thermals are often less expensive than merino wool thermals, but they may not be as warm or as comfortable to wear for extended periods of time.
Ultimately, the choice between merino wool and polypropylene thermals will depend on your personal preferences and needs.
Frequently Asked Questions
What are the best thermal layers for men?
The best thermal layers for men are those that provide warmth while remaining breathable and comfortable. Merino wool is a popular choice because it regulates temperature and resists odours. At Vast Outdoors, we stock high-quality thermal layers from trusted brands like Icebreaker and Mons Royale, designed to keep you warm in cold conditions without overheating during activity.
How to choose thermal underwear for hiking?
When choosing thermal underwear for hiking, consider material, weight, and fit. Lightweight thermals are suitable for active use, while heavier options provide more warmth in colder conditions. A snug fit helps retain heat and improves layering.
Are merino wool thermals better than synthetic?
Merino wool thermals are known for their natural warmth, breathability, and odour resistance, making them ideal for longer wear. Synthetic thermals dry faster and are often more affordable.
How should thermal wear fit?
Thermal wear should fit close to the body without being too tight. A proper fit helps trap heat while allowing moisture to move away from your skin. We recommend choosing thermals that feel comfortable and allow easy movement, ensuring effective layering and all-day comfort.
Can I wear thermals as everyday clothing?
Yes, thermals can be worn as everyday clothing, especially in cooler weather. Many modern designs are comfortable, lightweight and suitable for daily use. Such versatile thermal wear works as both a base layer for outdoor activities and comfortable everyday wear.
Vast Outdoors is an Australian family owned and operated independent small business with over 20 years of experience in the outdoor industry.
