Jannd bags are excellent quality. I have had a trunk bag for 8 years of commuting and panniers for 5 of those years and they are beat up, but perfectly functional. The zippers work perfectly, only one rip in the cordura from a crash at 20 mph. Very high quality stuff.

Jannd also makes a market pannier that will fit LP's perfectly. Of course anytime you are transporting delicate things proper packaging is necessary.