Shield yourself from summer sun and feel the breeze with the Trail Cool T-Shirt. This short-sleeve top is crafted from soft, stretchy, ultralight UPF 40+ fabric, providing breathable coverage and fast-drying comfort for long-distance hikers and trail runners who log big miles in the heat.

Our Trail Cool polyester fabric is designed to let the air through and pack down tiny. A spare t-shirt doesn't add much weight or bulk to your backpack, gym bag, or travel kit.

This t-shirt runs a little bit long and loose which is good for air flow and coverage. Size down if you are typically between sizes.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.

Shield yourself from the fierce summer sun and feel the breeze with the Trail Cool Sun Hoody. Constructed with a comfortable and stretchy ultralight UPF 40+ fabric, our technical hoody is engineered to keep you cool while providing maximum sun protection.

Featuring a loose fit billowing hood and quarter-length opening for air flow, the Trail Cool Sun Hoody was built to let you breathe in the backcountry.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.

Technical gear isn’t just for your pack. Every aspect of our Trail Cool Hiking Shorts was designed to meet the rigorous demands of thru-hikers, backpackers, and outdoor enthusiasts.

Constructed with premium Toray PrimeFlex™ fabric, these shorts are designed with long-term durability and mobility in mind. The articulated cut and 4-way stretch mean you’ll feel free to take on miles of rugged terrain with zero restrictions. Whether you wear them backpacking, running, or as ultralight swim shorts the Zpacks Trail Cool Shorts have you covered.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.

Technical gear isn’t just for your pack; it belongs in your everyday kit too. Our Trail Cool Joggers are built with cutting-edge Japanese tech Toray PrimeFlex™ fabric, designed to keep up with thru-hikes, overnighters, trail runs, and city adventures alike.

They’re crazy durable, super breathable, and move with you thanks to an articulated cut and 4-way stretch that feels like a second skin. Whether you're grinding out big miles or grabbing post-trail tacos, these joggers bring next-level versatility with zero compromises.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.

They are really comfortable, true to size, and really help with keeping your feet cool on a hike.

– Debbie L., ★★★★★

Prevent blisters and let your feet breathe with our Zpacks Trail Cool Socks. Enjoy the same performance elite athletes have come to expect in other sports with an ultralight hiking sock that's comfortable, breathable, and dries in minutes.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.