Not the drill movement but zips on sleeping bags.
Almost the full Snugpak range of sleeping bags offer the option of choosing the zip on either the left or the right. This does occasionally confuse and weâ€™ve had a few people ask whether a left hand zip means it is on the left or whether the zip is designed for people to use with their left hand.
The answer is that a left hand zip means that it is on the left hand side when you are laid in the sleeping bag on your back. We also find that this is what most people prefer to buy as left hand zips are easier to open with your right hand â€¦. and most of the population are right handed.
So in summary, left hand zips are normally better for right handed people and right hand zips are normally better for left handed people!