Integrate your Prestashop with UPS WorldShip. This module generates XML file for every order which can than be imported by UPS WorldShip. It saves your time on rewriting data to UPS WorldShip.
SirSizeCharts module allow you to insert the exact dimensions products in your online store. With simple tab in back-office you will be able to add new size chart types and connect them with products. Adding dimensions to product attributes is very simple with Sir SizeCharts tab on product edit page.