"The add-on for your backpack to transport your slack line better and easier.

The slackline can be easily rolled up with a crank and also ensures, that the slackline doesn't get tangled up.

"The handle of the spool can be screwed off and then be inserted in a different position to lock the spool and prevent the slackline from getting undone."

"The concept envisions the slackpack to be made out of vulkanfibre, a bio based material."