Frost crunches underfoot, and your breath hangs in the cold air. There’s nothing quite like a beautiful winter walk. The Whitney Peak 3-in-1 keeps you warm and dry in all weathers. The shell jacket is made of lightweight, windproof and waterproof TEXAPORE ECOSPHERE. This fabric is also very breathable, so when you’re moving fast on steep, uphill trails, you’ll still feel fit and fresh. Under the shell, there’s a windproof inner jacket with very warm MICROGUARD ECOSPHERE synthetic insulation. So