diff --git a/newsfragments/+f9a115e5.feature.rst b/newsfragments/+f9a115e5.feature.rst
new file mode 100644
index 0000000..8e692a2
--- /dev/null
+++ b/newsfragments/+f9a115e5.feature.rst
@@ -0,0 +1 @@
+Rely on cached_property to cache values on the instance.
\ No newline at end of file
diff --git a/zipp/__init__.py b/zipp/__init__.py
index 20b6d04..d5b96b8 100644
--- a/zipp/__init__.py
+++ b/zipp/__init__.py
@@ -7,7 +7,7 @@
 for more detail.
 """
 
-import contextlib
+import functools
 import io
 import itertools
 import pathlib
@@ -181,16 +181,18 @@ class FastLookup(CompleteDirs):
     """
 
     def namelist(self):
-        with contextlib.suppress(AttributeError):
-            return self.__names
-        self.__names = super().namelist()
-        return self.__names
+        return self._namelist
+
+    @functools.cached_property
+    def _namelist(self):
+        return super().namelist()
 
     def _name_set(self):
-        with contextlib.suppress(AttributeError):
-            return self.__lookup
-        self.__lookup = super()._name_set()
-        return self.__lookup
+        return self._name_set_prop
+
+    @functools.cached_property
+    def _name_set_prop(self):
+        return super()._name_set()
 
 
 def _extract_text_encoding(encoding=None, *args, **kwargs):