I’ve tried several iterations of their thermal leggings and ... I really like about Icebreaker’s Merino Blend 200 Realfleece Descender Long Sleeve Zip Hoodie is just how small this thing ...

Icebreaker 260 ZoneKnit Long Sleeve Half Zip Thermal Top ... with the equally excellent Icebreaker Merino Blend 200 ...

So, when my editor at CNN suggested I pit a set of Smartwool’s Classic Thermal Merino Base Layers against a much cheaper pair of Uniqlo’s HeatTech Ultra Warm Leggings and Long-Sleeve T-Shirt ...

And never one to shy away from a challenge, AusGeo Adventure decided to put the Icebreaker Women’s Merino 200 Oasis Long Sleeve Crewe Thermal Top through its paces… on a climb up Tassie’s highest peak ...

For centuries, merino sheep ... Men’s Classic Thermal Merino Base Layer Bottom • Best merino wool base layer for cold weather: Mammut Trift Half-Zip Long-Sleeve Top and Mammut Trift Long ...

A thermal layer can come in a variety of forms ... semifitted Asics Thermopolis Lite Crew is surprisingly warm for a lightweight long-sleeve shirt, making it perfect for chilly morning runs.