I have never had a broken bottle using my neoprene protectors in the many trips to SXM and other places. Our luggage are hard sided and I am diligent in packing them with plenty of padding surrounding them using clothing and such. I bring home plenty of single malts in the top shelf category. Just returned with a LT of JW Blue (blend) in my checked bag along with many others. One of my favorites are the Glenfidich line and 18 yr McCallan.