The Zirkel Day Pack is Tellus Co-Founder Joe Basta’s favorite backpack. It’s a go-anywhere companion designed for everything from local hikes to weekend getaways to international travel. We believe it’s one of the most versatile packs you can find.
Made with the same eco-friendly materials and craftsmanship that define every Tellus product, Zirkel is feature-rich and durable. Zirkel Day Pack is designed to support your Adventures with Purpose and contributes to preserving the planet. Read on or watch the video to learn all about Zirkel.
Remarkably durable fabric
To create the ultimate backpack, we had to find the right heavy-duty recycled fabric. That lead us to X-Pac®, a U.S. company and world leader known for manufacturing advanced, high-quality sailcloth.
We chose X-Pac RX36 fabric for the Zirkel Day Pack because it’s high-quality, performance-driven, and made with recycled materials that have a lighter impact on the planet. X-Pac’s RX36 laminate fabric is made with durable, 100% recycled post-consumer polyester. The fabric is 100% waterproof, abrasion-resistant and made to last through harsh outdoor conditions.
Spacious storage, maximum organization
Zirkel is designed with many compartments and pockets to organize and carry your gear securely.
Top compartment
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Rugged waterproof zipper
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Wide compartment with internal pockets stores wallet, phone, keys, cough drops, earbuds and lip stuff
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Quick access to essentials when stowed in overhead baggage
Left side
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Vertical zipper side compartment with pockets holds pencils, cables, tissues, EpiPen and sunglasses.
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Vertical zipper cushioned back compartment slot that securely stows laptop, tablet and important papers.
Right side
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Mesh pocket holds water bottles and phones
Main compartment
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Wide internal pocket holds laptops, tablets and notebooks
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Middle pocket holds snacks and cables
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Large compartment stuffs full of everything you need for every activity
Front zipper compartment
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Pockets upon pockets organize your gear
Front lower zipper pocket
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Stuff away keys, lip stuff and dental floss
Students, commuters, adventurers and photographers have told us they love this pack. Their favorite features include:
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Comfortable straps and a supportive back panel for long days
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Weatherproof zippers with grippy pulls and reinforced seams for all-weather confidence
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Multi-use pack seamlessly transitions between hiking trails, work commutes and plane travel seamlessly
Whatever you’re up to, everything you need packs up and rides safely in a Zirkel Day Pack backpack.
The Tellus Difference
We make our products for people who live life to the fullest and who want to do better for the planet. Our apparel and accessories are Colorado-inspired, use recycled materials that last and support our GiveBack100 pledge of donating 100% of our net profits to environmental conservation.
Through national and local partnerships, including The Nature Conservancy, Coalition for the Poudre River Watershed and The Bird Conservancy of the Rockies, we support protecting and preserving the planet and the wild places we all love.
Grab a Zirkel Day Pack and trust that your gear is secure in a versatile waterproof backpack that contributes to restoring, preserving and protecting our planet.







Finding Fall: An Adventure with Purpose in the Canadian Rockies
Recycled Down as Performance Insulation