How does express shipping work on Rivly?

Sellers have the option for each listing to offer upgraded express shipping which is expected delivery in 1-3 days. Currently, this express option is only available for integrated 3PLs but a seller-filled express qualification program is coming soon. More listings that offer express shipping will increase the seller service score that impacts product ranking on Rivly. The shopper cost for an express shipping upgrade is currently a flat rate $1.99 per item for deliveries in the continental US, an amount which covers the large majority of express upgrades domestically. Orders being mailed to Alaska and Hawaii require $1.99 extra just for standard shipping and do not have express shipping available at this time.