Protostrap was born out of sheer boredom while my kids were at a four-hour-a-day spring break swim camp. Picture me just sitting there with my sketchbook, trying to think of ways to avoid making more stuff in China LOL Takes some getting use to, but it works. It's still super lightweight too! Use two straps if necessary and make sure you back it up with Tessgrip!
 
I use Protostrap L mainly for 6S L-ion batteries 4000mah ~ 8000mah. It is possible to strap a 1300mah 6S  and up however you will need to tuck away a lot of excess in the loop. For safety, 2 straps are included.
 
Proudly printed in Vancouver, Canada 🍁