Heavyweight Baselayer Bottom

We stand behind the craftsmanship and reliability of every piece of ASIO Gear.

• 30-Day Money-Back Guarantee: If you're not completely satisfied, return any unused item within 30 days for a full refund.
• Lifetime Guarantee: If your gear ever fails due to a defect in materials or craftsmanship, we’ll repair or replace it—no questions asked.

As a direct-to-consumer brand, we know you want to touch it, feel it, and try it on. That’s why we offer free 30-day returns and exchanges—so you can do just that with no added cost.

If your gear isn’t the right fit, return it unused, with tags, within 30 days. We’ll cover the return shipping, and if you’re exchanging, we’ll ship the new item out at no charge.

Get started anytime through our Return/Exchange Portal. It’s quick, easy, and built to keep you focused on the hunt—not the hassle.

The Heavyweight Baselayer Bottom is made for those cold, still sits when every layer counts and every sound matters. Built from heavyweight merino wool, it locks in heat, wicks away moisture, and fights scent at the source—all without restricting movement or layering flexibility. A full-zip leg design allows for fast transitions without removing your boots, giving you total control as weather shifts. When you’re locked in for late-season hunts, this is the layer that keeps you warm, dry, and deadly.