Mobility Meets Comfort: The Evolution SlumberSac™ features a walkable footbox and integrated sleeves, letting you move freely without sacrificing warmth. No more being trapped in your bag or struggling to maneuver during the night.
Customizable Warmth: Removable liners with sleeves allow you to adjust insulation to match the conditions or your personal preference. With both down and synthetic options, every adventurer can find the perfect fit.

Modular Versatility: This isn’t just a sleeping bag—it’s a full sleep system. Use it as a sleeping bag, wearable insulation, or quilt. The Xtreme version even separates into a jacket and walkable bottom, reducing pack weight while increasing functionality.
Premium, Purpose-Driven Design: Every detail is intentional. Lightweight, durable, and ergonomically engineered, with magnetic closures for quick adjustments, the SlumberSac™ delivers practical innovation. And every purchase supports conservation initiatives, giving your gear real-world impact.

Comfort, Convenience, and Confidence…
redefined.

Founder’s Corner:

Why Buy an Evolution SlumberSac™?

Stop struggling and start sleeping. Say goodbye to miserable, cold, clumsy midnight exits and enjoy comfort, convenience, and warmth wherever your adventure takes you. Adaptable for backcountry treks, car camping, or weekend trips, it’s a versatile solution that fits every outdoor lifestyle.

Invest in a legacy product. Innovative, functional, and purpose-driven, the Evolution SlumberSac™ is built to last and designed to redefine outdoor sleep.

The Evolution SlumberSac™ isn’t just a sleeping bag—it’s a game-changer in outdoor sleep. Sleep better, move freely, and adventure smarter with OWL.

Why be uncomfortable
and miserable?

Not “Athena”, but a beautiful Eurasian Eagle Owl named “Flash” at the Shieldaig Lodge in the Scottish Highlands, near Badachro, Gairloch.

Founder’s Corner:

Why the name OWL?

People often ask: “Why did you name your company OWL?”

The truth is, the name comes from an encounter that shaped my life. At 12, I became one of the first volunteers at the Raptor Center in Pueblo, Colorado. My “job” was cleaning aviaries, preparing food, and helping care for hawks, eagles, kestrels—and owls.

That’s when I met Athena, a Great Horned Owl recovering from a broken wing. Day after day, I fed her and sat outside her enclosure, mesmerized. She was powerful, dignified, and impossibly beautiful. When she was finally ready to be released, the staff chose me to carry her out and set her free.

The moment she perched on my arm, her gaze locked into mine. It was electric—like she saw straight through me. When I finally encouraged her into flight, she soared to a nearby cottonwood, turned, and looked back at me. I’ll never forget that connection. The director told me, “She’s chosen you. She’s your spirit animal.” And I could actually feel it…

For me, the owl became a symbol of wisdom, vision, and protection—a reminder to trust intuition, see beyond the surface, and move through life with quiet strength. That experience has guided me ever since.

So when it came time to build this company, OWL—Outdoor Wild Life—was the only name that truly fit, and captured the brand. Like its namesake, the vision to design OWL gear was born from foresight and innovation, and with the wisdom I gained learning about these magnificent raptors, it solves hidden problems in the outdoors. Our flagship innovation, the Evolution SlumberSac™, reimagines the sleeping bag with freedom, mobility, and comfort—eliminating the frustrations that have plagued campers for decades.

OWL is more than gear. It’s wisdom applied to design, protection from the elements, and the freedom to rest easy in the wild.

Common Barn Owl found throughout the Scottish Highlands

OWL Outdoor Wild Life

About Contact Follow