diff --git a/src/booking/AirlineInitiatedChanges/mockAirlineInitiatedChanges.ts b/src/booking/AirlineInitiatedChanges/mockAirlineInitiatedChanges.ts
index 657eadea..0ed452e9 100644
--- a/src/booking/AirlineInitiatedChanges/mockAirlineInitiatedChanges.ts
+++ b/src/booking/AirlineInitiatedChanges/mockAirlineInitiatedChanges.ts
@@ -5,6 +5,7 @@ export const mockAirlineInitiatedChange: AirlineInitiatedChange = {
   travel_agent_ticket: null,
   removed: [
     {
+      fare_brand_name: 'Economy Basic',
       conditions: {
         change_before_departure: {
           penalty_currency: 'GBP',
@@ -140,6 +141,7 @@ export const mockAirlineInitiatedChange: AirlineInitiatedChange = {
   available_actions: ['accept', 'cancel', 'change'],
   added: [
     {
+      fare_brand_name: 'Economy Basic',
       conditions: {
         change_before_departure: {
           penalty_currency: 'GBP',
diff --git a/src/booking/Orders/OrdersTypes.ts b/src/booking/Orders/OrdersTypes.ts
index 29d13a06..992c3bbf 100644
--- a/src/booking/Orders/OrdersTypes.ts
+++ b/src/booking/Orders/OrdersTypes.ts
@@ -379,6 +379,17 @@ export interface OrderSlice {
    * The segments - that is, specific flights - that the airline is offering to get the passengers from the origin to the destination
    */
   segments: OrderSliceSegment[]
+
+  /**
+   * The name of the fare brand associated with this slice.
+   * A fare brand specifies the travel conditions you get on your slice made available
+   * by the airline. e.g. a British Airways Economy Basic fare will only include a hand baggage allowance.
+   * It is worth noting that the fare brand names are defined by the airlines themselves and therefore they
+   * are subject to change without any prior notice. We're in the process of adding support for fare_brand_name across
+   * all our airlines, so for now, this field may be null in some offers.
+   * This will become a non-nullable attribute in the near future.
+   */
+  fare_brand_name: string | null
 }
 
 export interface OrderPaymentStatus {
diff --git a/src/booking/Orders/mockOrders.ts b/src/booking/Orders/mockOrders.ts
index 9a8ce932..49ec6c1e 100644
--- a/src/booking/Orders/mockOrders.ts
+++ b/src/booking/Orders/mockOrders.ts
@@ -57,6 +57,7 @@ export const mockOrder: Order = {
   cancellation: null,
   slices: [
     {
+      fare_brand_name: 'Economy Basic',
       segments: [
         {
           passengers: [
@@ -300,6 +301,7 @@ export const mockOnHoldOrders: Order[] = [
     tax_amount: '15.90',
     slices: [
       {
+        fare_brand_name: 'Economy Basic',
         segments: [
           {
             passengers: [
@@ -480,6 +482,7 @@ export const mockOnHoldOrders: Order[] = [
     tax_amount: '17.50',
     slices: [
       {
+        fare_brand_name: 'Economy Basic',
         segments: [
           {
             passengers: [