Lioninside®

Your space. Your gym. Your rules.

About us

Lioninside® is an innovative and premium Dutch fitness brand, based in Sliedrecht. We combine advanced technology with timeless design to create fitness equipment that is not only powerful and durable, but also aesthetic and space-saving.

Our mission

To deliver high-quality, innovative home fitness solutions, especially for athletes who choose quality, results, and efficiency.

Every product in our range, from our adjustable dumbbells to the latest kettlebell systems, is designed with attention to detail and manufactured in leading factories, carefully tested in the Netherlands.

What makes Lioninside® unique

  • Premium materials — a finish you feel in the first second, not only after a year of use
  • Compact, modular design that fits into any living room (no ugly rack needed)
  • 3-year manufacturer’s warranty
  • Tested by Men's Health and named "the best adjustable dumbbell we’ve ever used"
  • Shipping and customer service from Sliedrecht — with us, you speak to a person, not a script

Lioninside® exists for people who are tired of home training always being a compromise: either expensive and ugly, or affordable and disposable.

We design equipment that combines the technology of a professional gym with a design that fits into a modern interior — without compromising on strength, precision, or durability.

Whether you're building a complete home gym or want to train smartly in a corner of your living room: with Lioninside® you make one solid investment.


Join 19,000+ satisfied customers

  • Customer service

    085 0606 291 or via klantenservice@lioninside.nl 

  • Track & Trace

    Updates & tracking directly after ordering

  • Returns

    Easy returns within 14 days 

  • Express delivery

    Delivered within 1 business day

Customer service

085 0606 291 or via klantenservice@lioninside.nl 

Track & Trace

Updates & tracking directly after ordering

Returns

Easy returns within 14 days 

Express delivery

Delivered within 1 business day