10 Best Thermal Leggings 2020 (To Keep You Warm In Winter)

Thermal leggings are the ideal choice of bottoms for heading outdoors in when it’s cold. They’re made of material that traps heat and therefore keep your legs warm. Some thermal leggings are fleece lined and others are made out of cotton-polyester blend that is both moisture-wicking and breathable. They are ideal for going for a run on a chilly morning or perfect for walks or hikes.

Thermal base layer leggings can be worn beneath your top layers of clothing to keep your body warm, especially during freezing winter temperatures. Made from fabrics such as merino wool, to protect against the cold, thermal base layer leggings also trap body heat to provide warmth. 

We’ve searched the market to find the best thermal leggings for women and men, plus the best selection of thermal base layer leggings for wearing underneath clothing.

Let’s get started!

Best Thermal Leggings For Women

Duofold Women's Heavy-Weight Double-Layer Thermal Leggings
Double-layer thermal leggings with drawcord at waist for adjustable fit. These heavy-weight leggings will keep legs warm in cold conditions. Available in sizes S/M/L/XL.
CRZ YOGA Women's Thermal Fleece Lined Leggings High Waisted Winter Yoga Pants with Pockets
Fleece lined leggings made for working out. Made from stretchy, non-see-through polyester-spandex blend with two side pockets to hold your phone and keys. The waistband has an inner adjustable drawstring for a customised fit. With moisture-wicking and interlocking seams that prevent chafing. Available in sizes 6-16.
ZERDOCEAN Women's Plus Size 100% Cotton Fleece Lined Thermal Full Length Leggings
Soft fleece lined 100% cotton leggings. Anti piling & non-transparent thick fabric. Ideal for cold weather. Available in sizes XXL/3X/4XPlus/4X.
BALEAF Women's Thermal Fleece Running Cycling Tights Athletic Compression Trousers for Hiking/Bike
Made with lightweight and breathable material the quick-dry construction wicks moisture to keep you drier whilst exercising. Soft fleece inside provides long lasting warmth and comfort. Back pocket with zipper securely stores your small items like keys. Leg zippers for easy off and on wear. Available in sizes XS/S/M/L/XL.

Best Thermal Leggings For Men

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Under Armour Men HeatGear 2.0, Comfortable Gym Leggings for Men
Ultra-lightweight men’s leggings. The compression fit means the leggings fit like a second skin and thanks to the material they offer full freedom of movement in all directions. Material transports sweat away from the body and dries quickly. The elasticated net inserts in the gusset and inner seam ensure extra ventilation. They are ideal for running and training outdoors. Available in mens sizes S/M/L/XL/XXL.
Nike Flash Running Tights
Slim fit mens leggings which are perfect for running or training. Breathable fabric and elastic waistband with lanyard.

Best Thermal Base Layer Leggings

Campri Ladies Womens Stretchy Base Layer Thermal Pants Underwear
These have been designed with an elasticated waistband, a heat retaining inner, plus breathability mesh to the outer. Subtle tonal Campri branding sits to one thigh. To wear under usual clothing for extra warmth in cold conditions.
Mountain Warehouse Merino Womens Thermal Base Layer Pants
These merino wool womens pants are a high performance baselayer. Naturally antibacterial, breathable, the fabric is lightweight and will keep you comfortable in cool or warm conditions. They are ideal for skiing and hiking or everyday wear in winter. Available in sizes 6-20.
Icebreaker Men's 200 Oasis Leggings Base Layer
Merino jersey fabric leggings are the ideal foundation for everyday cold-weather layering. The fabric is not only insulating and highly breathable, but it resists odours during extended use. The brushed elastic waistband and flatlock seams throughout eliminate chafing when you're on the move. Available in mens sizes S/M/L/XL/XXL.
TSLA Women's Thermal Wintergear Compression Baselayer Pants Leggings Tights
Thermal pants designed for warmth with fleece lining. Extreme Compression Fit. Moisture sensing, quick drying with two way air circulation. Deodorisation function which doesn't leave unpleasant smell behind from sweat. Available in sizes XS/S/M/L/XL.

Where To Buy Online (Best Retailers)

In our product reviews above I’ve recommended Amazon as they tend to have the best price and stock levels. I do recommend checking other retailers such as the following, which cater for both men and women;-

  • eBay
  • Argos
  • M&S
  • Mountain Warehouse
  • Matalan
  • Fabletics

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