The Vacu Vin Active Cooler Wine Platinum actively chills your favourite bottle of wine and keeps it cool and refreshing. The insulated bottle cooler sleeve keeps the bottle at its ideal serving temperature until the last sip. For optimal use, keep the reusable sleeve in the freezer for at least 6 hours.The Active Cooler is designed to fit tightly around 0.7-1 L wine and drink bottles. Once used, remove the wine cooler from the wine bottle, flatten it and store the bottle cooler in the freezer. The lightweight, portable cooler is ideal for a picknick, BBQ, beach day or another outdoor event.