Pooching is something that happens to overweight guys wearing sporrans. The sporran chain drapes somewhat loosely over the hips and only goes through one belt loop, all the way in the back. Well the chain can get under the love handles and cause some of the kilt fabric to bulk up above the chain. This requires me to periodically adjust my kilt throughout the day to counteract the pooching effect.

It can also push the sporran down under the belly which puts additional tension on the chain, making it pooch more, and just plain look bad.

The sporran sling eliminates this by suspending the sporran from the front of the main belt and eliminating the chain all together.