Urine related - which are the best pads

Can't really help as I am female, but I get pads from ageuk which has a good selection. I think you can order samples to try too. 

My OH gave up on stick ones and uses pull-up type ones. Age UK as Teasswill says, Delivered by courier in plain boxes.

I gave up on pads as they were too fiddly and also uncomfortable, so I bought some Tena for Men underpants. They are a godsend, very comfortable and do the job exceptionally well. They are washable, so although they are quite expensive they pay for themselves as you do not have to constantly pay for pads. Tenda quite often do special offers after you buy the first few, so that is a saving too. I thoroughly recommend them.