You have to track your item on https://parcelsapp.com/en/tracking.
Your patch is shipped with USPS, but tracking is through lettertrack. 
YOUR TRACKING NUMBER WILL NOT WORK ON USPS. 
PLEASE DO NOT OPEN AN ITEM NOT RECEIVED CASE BEFORE TRACKING YOUR ITEM ON https://parcelsapp.com/en/tracking/

Embroidered Sew-On Patch. It does have an iron on backing but I always recommend sewing. 

Vertical red-and-white embroidered patch reading “KRYLON” styled like a vintage Borden can. 

Embroidered sew-on patch, red twill base, white thread, oval. 4 x 2"

Condition is New old stock. Shipped with USPS.

Shows wear from age and storage. 
View and zoom in on each photo for details and complete description. 

* I do not offer refunds. all items are vintage items from auctions and estates. NEW OLD STOCK ITEMS MAY NOT BE RETURNED IF OPENED, UNSEALED OR TAGS REMOVED. Please view all photographs and ask any questions you may have prior to bidding or buying. Use photos as a complete description of the item. I highlight damage or wear with close up photos. All measurements are approximate. 
If there is a shipping fee it factors in packing material and processing time. Shipping is not negotiable. Shipping is calculated on size and weight of the item with box and packing material. We ship FedEx ground and Postal Service.
Patches and paper items may ship with a stamp. Please be patient and reach out if there are any delays. I mark shipped the day it gets dropped at the post.