SPIbelt Flex Running Belt


Lift weights at the gym. Get your abs burning with core work on the mat. Listen to music while you walk or run. The SPIbelt™ Flex is with you at every move. It holds your phone for a hands-free workout and has a headphone port so you can easily listen to music. The Flex buckles at the front so it’s comfortable to wear while you’re lying or sitting down. As with all SPIbelt products, the Flex is lightweight, bounce-free, and can be worn under or over clothing. 

  • Bounce-free
  • Front buckle comfortable for floor exercises
  • Headphone port
  • Pocket expands to 6.5″ x 3″ x 2″ 
  • Soft, durable elastic
  • Fits waist size 23″ through 50″

How is the Flex different from the Original SPIbelt?

  • Buckle is located next to the pocket instead of in the back
  • This means you can comfortably wear it for floor and mat exercises
  • It has a headphone port
  • Listen to music hands-free while doing squats, leg press and other workout routines

Frequently Asked Questions

SPIbelt will not bounce when full. Our product is designed to stay comfortably in place.

Here are some suggestions on how to wear a SPIbelt for comfort, style, and best fit!

Make sure the zipper is aligned in the centre of the pocket instead of having the zipper at the top.

Stack items from largest to smallest from bottom to top.

The SPIbelt can be wore high or low on the hips. We find most people prefer lower on the hips (a few inches below the navel).

Don’t forget to make sure that the elastic is snug!

Learn More Here

We offer three sizes of SPIbelts:

- The Kids’ SPIbelt fits a child with a 18″–24″ waist size (all Kids’ SPIbelts come in Non-Logo elastic).
- Adult SPIbelts fit a 24″–47″ waist size.
- The SPIbelt Belt Extender or SPIbelt Belt Extender Pro extends your SPIbelt’s elastic by up to 12 inches.

NOTE: The Belt Extender is only compatible with only specific products. Please look at the product page for compatible products.

Yes. Hand wash with a mild detergent and hang to dry.
Care concerns: machine washing and drying your SPIbelt may lead to fabric snags and broken plastic. Check out our blog post for step by step instructions - read more.

IMPORTANT: SPIbelt products are NOT waterproof. Items may be exposed to moisture. We recommend the use of a waterproof resealable bag if using with electronics or other small personal items that must remain dry.

Yes, a race number can be attached to all SPIbelts, but you will need to purchase a set of Race Bib Toggles that loop around the elastic of your SPIbelt. The SPIbelt Race Number Belt comes with built in Race Bib Toggles. 

How to use:

- Squeeze plastic toggle and remove black cord.
- Loop one end of cord around belt.
- Insert one end of cord through hole on bib.
- Squeeze toggle and insert both ends of cord into toggle hole.
- Repeat on the other side.