Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Not for runners
Review: I've used this pak for about 6 weeks now and am very frustrated with it. The elastic strap increases the bounce which is the last thing a runner needs. A side effect of the bounce is that the pak becomes loose so, as a result, constant adjustments are needed as I run. It's constructed well and may be great for hikes and such but it's not for runners who want a bounce free run. My solution - I cut the strap off and replaced it with a non stretch strap. Now it works as good as my wife's pak - no problems.
