FLAT UP

collapsible mugs; collapsible cups; collapsible storage containers for domestic use in storing food or beverages; collapsible storage containers for domestic use; collapsible drinking cups reconfigurable between a use configuration and a generally flat configuration for storage by a selective relative pivoting of inner and outer sleeves; collapsible drinking mugs reconfigurable between a use configuration and a generally flat configuration for storage by a selective relative pivoting of inner and outer sleeves; collapsible travel mugs reconfigurable between a use configuration and a generally flat configuration for storage by a selective relative pivoting of inner and outer sleeves