Nothing beats a chunky fleece for soft, breathable warmth. And fleeces don’t get much chunkier than Snow Peak’s Thermal Boa. Drawing on the cult Japanese brand’s expedition heritage, it’s made from Polar-proven thick pile Polartec Thermal Pro fleece fabric for maximum warmth. Other tech-retro features are simultaneously technically advanced yet decidedly 90s, since after all, what was cutting-edge then still works now. So, you get an adjustable drawstring neck to lock in heat, a two-way main zip, thumb loops for full wrist coverage and a multitude of easy access pockets: chest and hand pockets plus double hidden pockets at the back too. Lastly, the fleece fabric is also fully recycled to ensure this piece is a sustainable addition to your cold-weather wardrobe.