diff --git a/pinaxcon/registrasion/management/commands/populate_inventory.py b/pinaxcon/registrasion/management/commands/populate_inventory.py
index dfc8597b..bb2cb210 100644
--- a/pinaxcon/registrasion/management/commands/populate_inventory.py
+++ b/pinaxcon/registrasion/management/commands/populate_inventory.py
@@ -110,8 +110,8 @@ class Command(BaseCommand):
         self.t_shirt = self.find_or_make(
             inv.Category,
             ("name",),
-            name="T-Shirt",
-            description="Commemorative conference t-shirts, featuring the "
+            name="Shirt",
+            description="Commemorative conference polo shirts, featuring the "
                         "linux.conf.au 2018 artwork.",
             required=False,
             render_type=inv.Category.RENDER_TYPE_ITEM_QUANTITY,
@@ -369,12 +369,12 @@ class Command(BaseCommand):
         ShirtGroup = namedtuple("ShirtGroup", ("prefix", "sizes"))
         shirt_names = {
             "mens": ShirtGroup(
-                "Men's/Straight Cut Size",
-                ("S", "M", "L", "XL", "2XL", "3XL", "5XL"),
+                "Men's/Straight Cut",
+                ("S", "M", "L", "XL", "2XL", "3XL", "4XL"),
             ),
             "womens": ShirtGroup(
                 "Women's Classic Fit",
-                ("XS", "S", "M", "L", "XL", "2XL"),
+                ("8", "10", "12", "14", "16", "18"),
             ),
         }
 
@@ -769,11 +769,11 @@ class Command(BaseCommand):
         ])
         free_category(ticket_staff_inclusions, self.penguin_dinner)
 
-        # Team & volunteer t-shirts, regardless of ticket type
+        # Team & volunteer shirts, regardless of ticket type
         staff_t_shirts = self.find_or_make(
             cond.GroupMemberDiscount,
             ("description", ),
-            description="T-shirts complimentary for staff and volunteers",
+            description="Shirts complimentary for staff and volunteers",
         )
         staff_t_shirts.group.set([
             self.group_team,