USPS (U.S. Post Office) is used to ship all orders using First Class Mail or Priority Mail services. Both are fast and include tracking.
No Parcel Post.
First Class Mail packages have a weight limit of 14 oz.
Packages weighing over 14 oz. will upgrade the shipping rates to Priority Mail only.
Orders with more than one sling can weigh over 14 oz. depending on the sling model. These orders will only qualify for Priority Mail and the First Class Mail option will not be shown on the shipping rate calculator.