Hi,
One of my clients sells performance auto parts and I noticed a few of the online retailers in the auto industry (and others), use a shopping cart that contains webapp/wcs/stores/servlet.

Is anyone here familiar with this ecommerce shopping cart application and if so, what is it so that I can look into it for my client?

Examples
jegs.com/webapp/wcs/stores/servlet/category_10001_10002_154702_-1_10021

burtsbees.com/webapp/wcs/stores/servlet/ProductDisplay?productId=-92&catalogId=10051&storeId=10001&langId=-1

abercrombie.com/webapp/wcs/stores/servlet/CategoryDisplay?storeId=10051&catalogId=10901&categoryId...

Thank you!
JB