Looking for inexpensive durable rainwear

I have a client that is a berry farmer looking to supply their workers with 2 piece rain wear. Any suggestions as to where to find it? I was hoping for something in a ripstop maybe?

I used to sell a LOT of PVC Coated Nylon Rainsuits, and to be honest, the ONLY selling point was price. Just ONE Helly Hanson Rainsuit would last longer than a dozen of the cheap ones. I don't sell them but you could try Dynamic Apparel Solutions in Philly or Virginia. I think their # is 800-727-6080