use the new GLIDER DataComponent

src/main/java/lol/hyper/toolstats/events/AnvilEvent.java

@@ -169,7 +169,7 @@ public class AnvilEvent implements Listener {
             }
             return;
         }
-        if (firstSlotMaterial == Material.ELYTRA) {
+        if (toolStats.itemChecker.canGlide(clone)) {
             addToken(event, tokenType, "flight-time", clone);
             return;
         }

src/main/java/lol/hyper/toolstats/events/PlayerMove.java

@@ -53,15 +53,23 @@ public class PlayerMove implements Listener {
             // player is not flying
             if (playerStartFlight.containsKey(player)) {
                 PlayerInventory inventory = player.getInventory();
-                ItemStack chest = inventory.getChestplate();
+                // copy their current armor
-                // make sure the player is wearing an elytra
+                ItemStack[] armor = inventory.getArmorContents().clone();
-                if (chest != null && chest.getType() == Material.ELYTRA) {
+                for (ItemStack armorPiece : armor) {
+                    // skip missing slots
+                    if (armorPiece == null) {
+                        continue;
+                    }
+                    // if the armor piece can glide, track the flight time
+                    if (toolStats.itemChecker.canGlide(armorPiece)) {
                         long duration = (System.currentTimeMillis() - playerStartFlight.get(player));
-                    ItemMeta newItem = toolStats.itemLore.updateFlightTime(chest, duration);
+                        ItemMeta newMeta = toolStats.itemLore.updateFlightTime(armorPiece, duration);
-                    if (newItem != null) {
+                        if (newMeta != null) {
-                        inventory.getChestplate().setItemMeta(newItem);
+                            armorPiece.setItemMeta(newMeta);
                         }
                     }
+                }
+                inventory.setArmorContents(armor);
                 playerStartFlight.remove(player);
             }
         }

src/main/java/lol/hyper/toolstats/tools/ItemChecker.java

@@ -17,6 +17,8 @@
 
 package lol.hyper.toolstats.tools;
 
+import io.papermc.paper.datacomponent.DataComponentType;
+import io.papermc.paper.datacomponent.DataComponentTypes;
 import lol.hyper.toolstats.ToolStats;
 import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
@@ -116,6 +118,22 @@ public class ItemChecker {
         return mineItems.contains(itemType);
     }
 
+    /**
+     * In newer versions of Minecraft, you can make items glide, which works
+     * like an Elytra.
+     *
+     * @param itemStack The item to check.
+     * @return True/false if the item can glide like an Elytra.
+     */
+    public boolean canGlide(ItemStack itemStack) {
+        // if it's an elytra, we are good
+        if (itemStack.getType() == Material.ELYTRA) {
+            return true;
+        }
+        // otherwise if it has the GLIDER data
+        return itemStack.hasData(DataComponentTypes.GLIDER);
+    }
+
     /**
      * Check a given item for a target token.
      *