My postman delivered one of these "all-in-one" coats this morning and Tilly and I have just got back from trying it out. We got ours from
www.countrymun.co. It does have vents in the back for "business" purposes, unisex, too! Having said that, Tilly did not "perform" on her walk, which is unusual, but maybe she felt a little inhibited. Tilly is not a large cocker, so I got the 41cm size, which cost £22 and fits really well, with a bit of growing room.
The good news is that it certainly served its purpose, Tilly was lovely and dry and clean when we got back. The coat was a bit mud-splashed, but wiped clean. The bad news is that Tilly was really subdued on her walk. Her whole body language said "you're not going to take me out in THAT, are you??!" I think she was glad not to meet any of her mates and lose some street-cred, although I think she looks cute in it - it looks sporty rather than fussy. She was so subdued, she walked beautifully to heel (usually she's very boucy!) so there are some compensations for this! Its probably because it feels strange to her at the moment, so we shall persist and I will let you know how she takes to it. So far (early days) I am very pleased with it.
Sorry if you get this twice, I'm still learning how to drive this thing and I may have pressed the wrong button!
hth
Sue