diff --git a/api/assetProxy.js b/api/assetProxy.js
index dda53a8..1ab3b7f 100644
--- a/api/assetProxy.js
+++ b/api/assetProxy.js
@@ -6,7 +6,7 @@ const streamPipeline = util.promisify(stream.pipeline);
 
 const VALID_URL_PATTERNS = [
   /^http:\/\/images\.neopets\.com\/items\/[a-zA-Z0-9_ -]+\.gif$/,
-  /^http:\/\/pets\.neopets\.com\/cp\/[a-z0-9]+\/[0-9]+\/[0-9]+\.png$/,
+  /^http:\/\/images\.neopets\.com\/cp\/(bio|items)\/data\/[0-9]{3}\/[0-9]{3}\/[0-9]{3}\/[a-f0-9_]+\/[0-9]+\.svg$/,
 ];
 
 export default async (req, res) => {
@@ -34,6 +34,13 @@ export default async (req, res) => {
   );
 
   res.status(proxyRes.status);
+
+  res.setHeader("Content-Length", proxyRes.headers.get("Content-Length"));
+  res.setHeader("Content-Type", proxyRes.headers.get("Content-Type"));
+
   res.setHeader("Cache-Control", proxyRes.headers.get("Cache-Control"));
+  res.setHeader("ETag", proxyRes.headers.get("ETag"));
+  res.setHeader("Last-Modified", proxyRes.headers.get("Last-Modified"));
+
   streamPipeline(proxyRes.body, res);
 };
diff --git a/src/app/OutfitPreview.js b/src/app/OutfitPreview.js
index b3deead..0f17678 100644
--- a/src/app/OutfitPreview.js
+++ b/src/app/OutfitPreview.js
@@ -65,7 +65,7 @@ export function OutfitLayers({ loading, visibleLayers, doAnimations = false }) {
           >
             <FullScreenCenter>
               <ImageTag
-                src={layer.imageUrl}
+                src={getBestImageUrlForLayer(layer)}
                 // We manage the fade-in and fade-out separately! The fade-in
                 // happens here, when the <Image> finishes preloading and
                 // applies the src to the underlying <img>.
@@ -132,4 +132,12 @@ function FullScreenCenter({ children }) {
   );
 }
 
+function getBestImageUrlForLayer(layer) {
+  if (layer.svgUrl) {
+    return `/api/assetProxy?url=${encodeURIComponent(layer.svgUrl)}`;
+  } else {
+    return layer.imageUrl;
+  }
+}
+
 export default OutfitPreview;
diff --git a/src/app/useOutfitAppearance.js b/src/app/useOutfitAppearance.js
index 4b06567..d18283f 100644
--- a/src/app/useOutfitAppearance.js
+++ b/src/app/useOutfitAppearance.js
@@ -93,6 +93,7 @@ export const itemAppearanceFragment = gql`
   fragment ItemAppearanceForOutfitPreview on ItemAppearance {
     layers {
       id
+      svgUrl
       imageUrl(size: SIZE_600)
       zone {
         id
@@ -111,6 +112,7 @@ export const petAppearanceFragment = gql`
     id
     layers {
       id
+      svgUrl
       imageUrl(size: SIZE_600)
       zone {
         id
diff --git a/src/app/useOutfitState.js b/src/app/useOutfitState.js
index bdd0c72..d20c79b 100644
--- a/src/app/useOutfitState.js
+++ b/src/app/useOutfitState.js
@@ -188,8 +188,8 @@ function parseOutfitUrl() {
     colorId: urlParams.get("color"),
     emotion: urlParams.get("emotion") || "HAPPY",
     genderPresentation: urlParams.get("genderPresentation") || "FEMININE",
-    wornItemIds: urlParams.getAll("objects[]"),
-    closetedItemIds: urlParams.getAll("closet[]"),
+    wornItemIds: new Set(urlParams.getAll("objects[]")),
+    closetedItemIds: new Set(urlParams.getAll("closet[]")),
   };
 }
 
diff --git a/src/server/index.js b/src/server/index.js
index 6795234..91e2220 100644
--- a/src/server/index.js
+++ b/src/server/index.js
@@ -65,6 +65,14 @@ const typeDefs = gql`
     id: ID!
     zone: Zone!
     imageUrl(size: LayerImageSize): String
+
+    """
+    This layer as a single SVG, if available.
+
+    This might not be available if the asset isn't converted yet by Neopets,
+    or if it's not as simple as a single SVG (e.g. animated).
+    """
+    svgUrl: String
   }
 
   type Zone {
@@ -210,6 +218,42 @@ const resolvers = {
         `/${rid1}/${rid2}/${rid3}/${rid}/${sizeNum}x${sizeNum}.png?v2-${time}`
       );
     },
+    svgUrl: async (layer) => {
+      const manifest = await neopets.loadAssetManifest(layer.url);
+      if (!manifest) {
+        console.debug("expected manifest to exist, but it did not");
+        return null;
+      }
+
+      if (manifest.assets.length !== 1) {
+        console.debug(
+          "expected 1 asset in manifest, but found %d",
+          manifest.assets.length
+        );
+        return null;
+      }
+
+      const asset = manifest.assets[0];
+      if (asset.format !== "vector") {
+        console.debug(
+          'expected asset format "vector", but found %s',
+          asset.format
+        );
+        return null;
+      }
+
+      if (asset.assetData.length !== 1) {
+        console.debug(
+          "expected 1 datum in asset, but found %d",
+          asset.assetData.length
+        );
+        return null;
+      }
+
+      const assetDatum = asset.assetData[0];
+      const url = new URL(assetDatum.path, "http://images.neopets.com");
+      return url.toString();
+    },
   },
   Zone: {
     label: async (zone, _, { zoneTranslationLoader }) => {
diff --git a/src/server/neopets.js b/src/server/neopets.js
index 945e1f9..f99c411 100644
--- a/src/server/neopets.js
+++ b/src/server/neopets.js
@@ -1,12 +1,15 @@
 const fetch = require("node-fetch");
 
 async function loadPetData(petName) {
-  const res = await fetch(
+  const url =
     `http://www.neopets.com/amfphp/json.php/CustomPetService.getViewerData` +
-      `/${petName}`
-  );
+    `/${petName}`;
+  const res = await fetch(url);
   if (!res.ok) {
-    throw new Error(`neopets.com returned: ${res.statusText}`);
+    throw new Error(
+      `for pet data, neopets.com returned: ` +
+        `${res.status} ${res.statusText}. (${url})`
+    );
   }
 
   const json = await res.json();
@@ -17,4 +20,40 @@ async function loadPetData(petName) {
   return json;
 }
 
-module.exports = { loadPetData };
+async function loadAssetManifest(swfUrl) {
+  const manifestUrl = convertSwfUrlToManifestUrl(swfUrl);
+  const res = await fetch(manifestUrl);
+  if (res.status === 404) {
+    return null;
+  } else if (!res.ok) {
+    throw new Error(
+      `for asset manifest, images.neopets.com returned: ` +
+        `${res.status} ${res.statusText}. (${manifestUrl})`
+    );
+  }
+
+  const json = await res.json();
+  return {
+    assets: json["cpmanifest"]["assets"].map((asset) => ({
+      format: asset["format"],
+      assetData: asset["asset_data"].map((assetDatum) => ({
+        path: assetDatum["url"],
+      })),
+    })),
+  };
+}
+
+const SWF_URL_PATTERN = /^http:\/\/images\.neopets\.com\/cp\/(.+?)\/swf\/(.+?)\.swf$/;
+
+function convertSwfUrlToManifestUrl(swfUrl) {
+  const match = swfUrl.match(SWF_URL_PATTERN);
+  if (!match) {
+    throw new Error(`unexpected SWF URL format: ${JSON.stringify(swfUrl)}`);
+  }
+
+  const [_, type, folders] = match;
+
+  return `http://images.neopets.com/cp/${type}/data/${folders}/manifest.json`;
+}
+
+module.exports = { loadPetData, loadAssetManifest };
diff --git a/src/server/query-tests/PetAppearance.test.js b/src/server/query-tests/PetAppearance.test.js
index ea23c40..c4bc806 100644
--- a/src/server/query-tests/PetAppearance.test.js
+++ b/src/server/query-tests/PetAppearance.test.js
@@ -15,6 +15,7 @@ describe("PetAppearance", () => {
             layers {
               id
               imageUrl(size: SIZE_600)
+              svgUrl
               zone {
                 depth
               }
diff --git a/src/server/query-tests/__snapshots__/PetAppearance.test.js.snap b/src/server/query-tests/__snapshots__/PetAppearance.test.js.snap
index aed0832..5d48a66 100644
--- a/src/server/query-tests/__snapshots__/PetAppearance.test.js.snap
+++ b/src/server/query-tests/__snapshots__/PetAppearance.test.js.snap
@@ -7,6 +7,7 @@ Object {
       Object {
         "id": "5995",
         "imageUrl": "https://impress-asset-images.s3.amazonaws.com/biology/000/000/007/7941/600x600.png?v2-0",
+        "svgUrl": "http://images.neopets.com/cp/bio/data/000/000/007/7941_2c4cc4b846/7941.svg",
         "zone": Object {
           "depth": 18,
         },
@@ -14,6 +15,7 @@ Object {
       Object {
         "id": "5996",
         "imageUrl": "https://impress-asset-images.s3.amazonaws.com/biology/000/000/007/7942/600x600.png?v2-0",
+        "svgUrl": "http://images.neopets.com/cp/bio/data/000/000/007/7942_2eab06fd7b/7942.svg",
         "zone": Object {
           "depth": 7,
         },
@@ -21,6 +23,7 @@ Object {
       Object {
         "id": "6000",
         "imageUrl": "https://impress-asset-images.s3.amazonaws.com/biology/000/000/007/7946/600x600.png?v2-0",
+        "svgUrl": "http://images.neopets.com/cp/bio/data/000/000/007/7946_0348dad587/7946.svg",
         "zone": Object {
           "depth": 40,
         },
@@ -28,6 +31,7 @@ Object {
       Object {
         "id": "16467",
         "imageUrl": "https://impress-asset-images.s3.amazonaws.com/biology/000/000/024/24008/600x600.png?v2-0",
+        "svgUrl": "http://images.neopets.com/cp/bio/data/000/000/024/24008_a05fe9876a/24008.svg",
         "zone": Object {
           "depth": 34,
         },
@@ -35,6 +39,7 @@ Object {
       Object {
         "id": "19784",
         "imageUrl": "https://impress-asset-images.s3.amazonaws.com/biology/000/000/028/28892/600x600.png?v2-1313418652000",
+        "svgUrl": "http://images.neopets.com/cp/bio/data/000/000/028/28892_a8e3a8b430/28892.svg",
         "zone": Object {
           "depth": 37,
         },
@@ -42,6 +47,7 @@ Object {
       Object {
         "id": "178150",
         "imageUrl": "https://impress-asset-images.s3.amazonaws.com/biology/000/000/036/36887/600x600.png?v2-1354240708000",
+        "svgUrl": "http://images.neopets.com/cp/bio/data/000/000/036/36887_a335fbba09/36887.svg",
         "zone": Object {
           "depth": 38,
         },