Made of high quality 3mm neoprene. Sizing 3.54"x5.31", which is perfect for 12oz and 16oz bottles. Perfect for Cabin Weekends, Beach Days, Parties, Events, Birthdays, Camping, Wedding, Bachelor Party, Graduation, Picnics, BBQs, Retirement parties, bridal or any special event. These sleeves can be machine washed or hand washed. They are durable and will not deform after multiple cleaning. Your logo is welcomed to imprint on the sleeves to show your brand.