The SPIbelt Flux Running Belt – $15 Today, Down From $29.99
The SPIbelt Flux is an expandable running belt that holds larger smartphones including the iPhone 17 Pro Max and Samsung Galaxy S20+ while keeping keys, ID, cards, and headphones safe and close. It is the best fit for marathon runners, walkers, travelers, and gym-goers who want a secure, bounce-free pocket. Buy it online now for $15.00 – a 50% discount off the $29.99 compare-at price.
Specifications
- Brand: SPIbelt
- Model: The Flux
- Product Type: Expandable running belt / fitness waist pack
- Pocket Size: 9" x 4" x 2", expands for larger phones
- Compatibility: All phones incl. iPhone 17 Pro Max, Samsung Galaxy S20+
- Compatible with SPI H2O Companion
- Origin: Made in Austin, Texas
Materials & Build
Stretchy, low-profile band with an expandable spandex pocket and smooth-glide zipper – sits flat, moves with you, and eliminates bounce and chafing.
Size & Capacity
The 9" x 4" x 2" pocket expands to carry large phones, earbuds, keys, cards, ID, gels, and medical essentials.
Functions & Use Cases
- Marathon and distance running
- Walking, workouts, and races
- Travel and everyday errands
- Medical needs such as insulin pumps and EpiPens
Compatibility
Fits all phones including the iPhone 17 Pro Max and Samsung Galaxy S20+, and pairs with the SPI H2O Companion.
SPIbelt Flux vs Other Running Belts
The Flux competes with bulkier fanny packs and armbands – it is lighter, flatter, and stretchier. Compared to the SPIbelt Pro ($17.50), the Flux uses the original band and is the value pick at $15.00.
Price & Deal Value
Save $14.99 (50% off) at $15.00 vs $29.99. Stack coupon code SAVE15 for an extra 15% off, and get free shipping on orders over $45.
