Hi Matt
Missed your question entirely – sorry. maybe I was away.
No, the Whims and the Wisps are made from radically different fabrics. The black pants are a polyester with a wee bit of carbon fibre included in the mix – or so they claim. They came with a reasonable DWR coating already applied. They do repel water a fair bit.
But the windshirt seems to be just a (ultra) light nylon fabric with almost no DWR at all. Sure, it stops the wind, but that model are well-known to be very poor at repelling water. OK, why didn't they put a good DWR on the fabric? No idea – sorry.
Cheers