Made of 1/8" (3mm) neoprene (wet suit) material. Pint glass size fits 16 oz tapered pint glasses, party cup coolie fits 16 oz plastic disposable cups (compatible with Solo cups). The bottom is collapsible and folds flat for easy storage. Durable vinyl heat transfer printed on 1 side. Keeps drinks colder longer and hands dry. Prevents surface and table damage from condensation.

• Collapsible bottom, folds flat for storage
• 1/8" (3mm) neoprene material
• Pint glass size fits 16 oz tapered pint glasses, party cup coolie fits 16 oz plastic disposable cups (compatible with Solo cups). 
• Keeps drinks colder longer and hands dry
• Prevents surface damage from condensation
• Durable vinyl heat transfer printed on 1 side