Our Story

Two Moms, a Pop, and an Opa walk into a juice bar (or perhaps, meet on a video call)…

Mom A, or as the case may be, B: “I love working out with resistance bands, but they are so awkward to put on. Every time I try to climb into mine I feel like I’m holding up the class.”

“And when class is outdoors, the bands end up dragging in the dirt.”

The other three, “We can fix that!” And, “Magnets, it’s got to have magnets!” :-)

Sketching, revising, sketching, evaluating, sketching, CAD models, changes, improvements, fixes, 3D printing dozens of different other improvements, testing, material research, magnet research, tooling construction, website design, more testing, production! Ta Da!

And so, a Zula Loop was born (Modest four-person bow).

What you get and what you don’t. And why.

Self-aligning, self-latching buckle. ///Because, clever design and… magnets!

Secure buckle. ///Because, clever design and… magnets!

Easy release buckle, high grip strength not required. ///Because, clever design and, you probably guessed… magnets!

Bioplastic, biodegradable buckle material.///Because we all want a better planet.

High strength buckle. ///Because, Finite Element analysis by aerospace engineer (The Pop), material research and life-cycle testing.

Fun colors! ///Because Zula Loops is FUN!

Designed and sewn in the U.S.A. ///Because, we want to make it here, even if we make less money.

No plastic packaging. ///Because we all want a better planet.

Plain brown, compostable shipping envelope is the only packaging. ///Because, we could design an oo! ah! unboxing experience, but we hope you’ll be willing to give up a single endorphin hit for the sake of the planet.

Zula Loops Specs

Length: 15” , 381 mm (buckled and flat loop)

Width: 3” , 80 mm

Weight: 10 oz, 280 grams

Buckle material: Biodegradable Engineering grade Poly Lactic Acid

Band Material: Poly/Cotton blend with anti-slip latex grip threads

/ Tame: 20-30 lbs, 9-14 kg resistance

// Tone: 25-35 lbs, 11-16 kg resistance

/// Tough: 40-50 lbs, 18-23 kg resistance

Designed and sewn in the U.S.A.

Visit our Instagram page or check out our blogs for workout recommendations.

Our Team

  • Katrina Kravchenko

    Zula Loops Founder and Managing Partner

    Designer with MS in Textile Design and BS in Industrial Design, former Director of Design and Compliance at Pidyon Controls, inventor, and a mom of two boys.

    Enjoys: weaving, strength training workouts, skiing, and traveling.

  • Nina Zook

    Zula Loops Founder, CPST at CHOP, Procurement Specialist at Asylon

    Car seat safety enthusiast. In love with the fun and busy lifestyle being a mom of kids brings!

  • Peter Byar

    Zula Loops Founder, Retired Prof. of Industrial Design and Ergonomics at Jefferson University

    Former Director of Design, Recipient of multiple design awards and patents

    Enjoys: Running, Kayaking, Sailing, Cabinet making.


  • Stan Turner

    Zula Loops Founder, Retired Aerospace Engineer

    Cemetery Caretaker, AARP TaxAide Foundation Volunteer

    Enjoys: Running, Hiking, Skiing, Snowboarding, Gardening, Woodworking, 3D Printing