2x Oasis Lustre Stainless Steel Double Wall Insulated Tumbler 350ml - Mermaid Take your spirits or wine on the go with the "Lustre" Stainless Steel Double Wall Insulated Alfresco Tumbler from Oasis. Made from quality 18/8 stainless steel inside and out, this 350ml Alfresco Tumbler utilises vacuum insulation technology to significantly reduce heat transfer by conduction or convection. This technology prevents condensation from building on the exterior or heat from your hands permeating through the tumbler, heating your wine. Featuring a handy splash-proof lid, this tumbler makes for the perfect companion for any picnic, BYO event, day at the beach or pool side escape. Handwash recommended. Details: 350ml Capacity. Features a splash-proof lid. 18/8 Stainless steel. Vacuum insulated. BPA-free. Colour: Sparkling/Shiny Mermaid (Purple/Green) Package Includes: 2x Oasis "Lustre" Tumbler.