★UPGRADED TRIPLE PROTECTION - 4 set (8 pieces) wine travel bags provides the Triple Protection - PVC outer layer + double layers bubble bags. Refer to the 2rd picture ★ANTI-IMPACT BOTTLE SLEEVE - Double layers premium thick bubble bags padding provide enclosure for extra cushion, as well as their tough, sturdy, thick vinyl(PVC) exterior wrap to prevent breakage in transit shipping .No worries. LET YOUR WINE FLY LIKE AN ANGEL! ★TRIPLE SEAL LEAKPROOF - Double ziplock and Velcro seal to keep bag air tight and luggage safe from bottle breakage. If a bottle is accidentally crushed by a violent impact, liquid will not leak out of the bag and mess up your luggage. ★REUSABLE & EASY TO USE - These durable bottle travel sleeve protector bags can be used repeatedly in luggage for cars, planes, cruises.It's simple and easy to use with wine, beer, champagne, spirits, liquor, olive oil, perfumes and other fragile glass bottles. Let safety travel with you. Refer to the 4th picture ★This is not a cheap item, but I think it is worthwhile to buy them that can be reusable to protect your favoriate wine. We believe that our products will exceed your expectations since the best materials and workmanship. If you have any issue with our products, please contact us, we will do our best to find a satisfactory solution for you within 24 hours.