The Sitka Kelvin Aerolite Vest is your go-to piece for lightweight, packable warmth during cold-weather hunts. Designed with advanced insulation technology, this vest delivers exceptional warmth without adding bulk, making it an essential layering piece for serious hunters who need mobility and comfort in extreme conditions.

Featuring PrimaLoft® Gold Insulation with Cross Core™ technology, the Sitka Kelvin Aerolite Vest uses silica aerogel—a NASA-developed material known for its incredible warmth-to-weight ratio—to trap body heat while remaining highly breathable. This advanced insulation mimics the warmth of down, even when wet, ensuring you stay warm in damp or unpredictable weather. The durable, water-resistant (DWR) finish helps repel light moisture, keeping you dry and comfortable when conditions change.

With a low-profile design, the Kelvin Aerolite Vest fits seamlessly under outer layers or over a base layer, providing versatile insulation that adapts to varying weather conditions. The streamlined fit and quiet face fabric ensure you can move silently and freely, whether you’re stalking game or sitting in a blind.

The vest features zippered hand pockets and a secure chest pocket, providing easy access to essential gear without adding unnecessary weight. The high collar offers additional protection against the cold, sealing in warmth and blocking out chilling winds.

Built for active hunts, the Sitka Kelvin Aerolite Vest is perfect for those who need lightweight insulation that doesn’t sacrifice performance. Its compact design allows it to be packed easily into your bag, making it ready when you need it most.

Upgrade your cold-weather hunting gear with the Sitka Kelvin Aerolite Vest—experience unmatched warmth, packability, and mobility. Shop now and stay prepared for the harshest conditions!