When the conditions change but your pace doesn’t, the Sportful Vest Alpha keeps you perfectly balanced between warmth and breathability. Designed for high-intensity cross-country skiing, it’s a technical layer that delivers adaptable insulation and ventilation — giving you control over your comfort, no matter the effort. At its core is Polartec® Alpha® technology, an advanced thermal fabric that regulates temperature dynamically. It retains body heat when you’re still and dissipates excess warmth as you move, ensuring constant comfort throughout your session. Unlike traditional insulation, Alpha’s open structure allows moisture and air to flow freely, keeping you dry and light. The full-length front zipper lets you fine-tune ventilation, while the minimal construction and ergonomic fit make it ideal both worn directly over a base layer or under a shell jacket. Whether you’re training, racing, or layering up for variable weather, this vest is all about versatility — the perfect solution when a standard jacket feels too much, but a base layer alone isn’t enough. Lightweight, packable, and incredibly breathable, the Vest Alpha is the go-to companion for skiers who demand thermal control without compromise. Born from the Dolomites, built for performance. Sportful Vest Alpha — intelligent warmth for every track.