Cant speak for the others but I can't help but feel you might want to update your view on Alpine Star gear... well definitely about their trousers anyway.
I came on here looking for advice / suggestions/ recommendations anmd whatever others were saying about the merits of various makes of waterproof trousers.
I am used to so called waterproof bike trousers for decades leaking a little at the crotch on both my R1200 GS and various versions of ther F650 .....I put it down the seat position and that water pools in the crotch seat tank area whilst you're sat and in those circumstances I accept water will get in eventually ... thats including various makes of trousers including Frank Thomas. But those Alpine Star's well suffice to say that is not a brand I will be using again.
A pair of brand new Alpine Star trousers was bought for me as a gift. Consequently all the labels had been remove... some women seem to do that I don't know why.... (maybe a cause of whole thread somewhere else) I haven't worn them often and of course I had worn them in the rain ....without mishap ... but not in a deluge until...I was caught in that very heavy rain the other day (september 19th (i think) flooding everywhere not just South Yorkshire and nearly as bad as 2007) I had not gone a mile before my legs were completely soaked it felt as though water was getting in everywhere by the time I had got into Sheffiled centre 2 maybe 2 1/2 miles away with little if any delay, I had water pooling and sloshing about in my boots.
Anyway I just thought I'd mention why I've done with Alpine Star permanently. I'll certainly have a look at the some of the other reasonably priced gear mentioned in this thread.