Steiner Merino Thermal Top ST-0730 Charcoal-Green

This is a mid-weight merino base layer built for active winter sports. The blend of 47% merino wool, 48% polyester and 5% spandex gives you warmth without bulk, moisture-wicking to keep you dry, and natural odour resistance so you can wear it hard without frequent washing. The flat-lock seams won't irritate, and the integrated stretch follows your movement.

Why we rate it

Merino wool is the standby for base layers because it regulates temperature across a wide range of conditions—warm when you're static, breathable when you're working hard. The polyester blend adds durability and speeds drying time; the spandex gives you the stretch you need under a ski jacket without feeling baggy. The 175 gsm weight is substantial enough for serious cold but not so heavy that you'll overheat on the skin track or a long hike.

Who it's for

Anyone skiing or boarding in real winter, or heading to higher altitudes. Works equally well for touring, hiking or any winter activity where you need a base layer that won't quit. This is a crew-neck long-sleeve, so it pairs naturally under any ski jacket.

Key features

• Merino wool blend — warmth, breathability and natural odour resistance
• Flat-lock seams — sit flat against the skin, no chafe
• Integrated stretch — 5% spandex for movement without bagginess
• Quick-drying — polyester content speeds evaporation
• Mid-weight jersey — 175 gsm, substantial enough for real cold