diff --git a/pinaxcon/registrasion/management/commands/populate_inventory.py b/pinaxcon/registrasion/management/commands/populate_inventory.py
index c0877d34c94101c3fc12a4fe636bf7da0d9d189f..ec2745711206b1e2fc0bb877d2288ab11651e949 100644
--- a/pinaxcon/registrasion/management/commands/populate_inventory.py
+++ b/pinaxcon/registrasion/management/commands/populate_inventory.py
@@ -61,7 +61,7 @@ class Command(BaseCommand):
             name="Ticket",
             description="Each type of ticket has different included products. "
                         "For details of what products are included, see our "
-                        "<a href='https://linux.conf.au/attend/tickets/'>registration page</a>",
+                        "<a href='https://linux.conf.au/attend/tickets/'>registration page</a>.",
             required=True,
             render_type=inv.Category.RENDER_TYPE_RADIO,
             limit_per_user=1,
@@ -101,13 +101,10 @@ class Command(BaseCommand):
             name="Speakers' Dinner Ticket",
             description="Tickets to our exclusive Speakers' Dinner on the "
                         "evening of "
-                        f"{settings.SPEAKER_DINNER_TICKET_DATE: %A %d %B}. "
-                        "You may purchase up "
-                        "to 5 tickets in total, for significant others and "
-                        "family members.",
+                        f"{settings.SPEAKER_DINNER_TICKET_DATE: %A %d %B}.",
             required=False,
             render_type=inv.Category.RENDER_TYPE_QUANTITY,
-            limit_per_user=5,
+            limit_per_user=1,
             order=30,
         )
         self.pdns_category = self.find_or_make(
@@ -129,8 +126,10 @@ class Command(BaseCommand):
             inv.Category,
             ("name",),
             name="Shirt",
-            description="Commemorative conference polo shirts, featuring the "
-                        f"linux.conf.au {settings.LCA_START.year} artwork.",
+            description="Commemorative conference shirts, featuring the "
+                        f"linux.conf.au {settings.LCA_START.year} artwork. "
+                        "View the <a href=\"https://linux.conf.au/attend/shirts\">"
+                        "sizing guide</a>.",
             required=False,
             render_type=inv.Category.RENDER_TYPE_ITEM_QUANTITY,
             order=50,
@@ -355,13 +354,17 @@ class Command(BaseCommand):
         # Shirts
         ShirtGroup = namedtuple("ShirtGroup", ("prefix", "sizes"))
         shirt_names = {
-            "mens": ShirtGroup(
-                "Men's/Straight Cut",
-                ("S", "M", "L", "XL", "2XL", "3XL", "4XL"),
+            "straight": ShirtGroup(
+                "Straight Cut",
+                ("S", "M", "L", "XL", "2XL", "3XL", "4XL", "5XL"),
+            ),
+            "semi_fitted": ShirtGroup(
+                "Semi-Fitted",
+                ("XS", "S", "M", "L", "XL", "2XL"),
             ),
-            "womens": ShirtGroup(
-                "Women's Classic Fit",
-                ("8", "10", "12", "14", "16", "18"),
+            "fitted": ShirtGroup(
+                "Fitted",
+                ("XS", "S", "M", "L", "XL", "2XL"),
             ),
         }
 
@@ -463,7 +466,7 @@ class Command(BaseCommand):
         volunteer_ticket_cap = self.find_or_make(
             cond.TimeOrStockLimitFlag,
             ("description", ),
-            description="Reserrved for volunteers and organizers",
+            description="Reserved for volunteers and organisers",
             condition=cond.FlagBase.DISABLE_IF_FALSE,
             limit=62,
         )
@@ -563,14 +566,14 @@ class Command(BaseCommand):
         speaker_tickets.proposal_kind.set(self.main_conference_proposals)
         speaker_tickets.products.set([self.ticket_speaker, ])
 
-        # Speaker dinner tickets are for primary and secondary speakers
+        # Speaker dinner tickets are for primary speakers only
         speaker_dinner_tickets = self.find_or_make(
             cond.SpeakerFlag,
             ("description", ),
             description="Speaker dinner tickets",
             condition=cond.FlagBase.ENABLE_IF_TRUE,
             is_presenter=True,
-            is_copresenter=True,
+            is_copresenter=False,
         )
         speaker_dinner_tickets.proposal_kind.set(self.main_conference_proposals)
         speaker_dinner_tickets.categories.set([self.speakers_dinner_ticket, ])
@@ -767,7 +770,7 @@ class Command(BaseCommand):
         ticket_staff_inclusions = self.find_or_make(
             cond.IncludedProductDiscount,
             ("description", ),
-            description="Complimentary for ticket holder staff)",
+            description="Complimentary for ticket holder (Staff)",
         )
         ticket_staff_inclusions.enabling_products.set([
             self.ticket_team,