a binder is what my PS supplied ... hated every minute i was in it, but felt like my insides were going to fall out without it. day 10 he released me from it (wear it for your comfort is what he told me).
i bought one from
Compression Wear & Bodyshaping Clothing - Male & Female Girdles & Vests and they were the greatest. they custom make it for you if that's what you need and they are QUICK (and cheapest i found)
my PS said after my 10 day appt that the garment was for comfort and i didnt have to wear it if i didnt want to... i find it helps GREATLY with swelling. i didnt wear it initially yesterday and looked about 4 months pregnant all day. even after i put it on about 1030am.
i now only wear my binder if im really swollen but only around the house cause its ugly and cumbersome. i normally wear it OVER my clothes and that makes it a bit more comfortable, but not much.
my PS garment is good. its a pain to get on, but once its on, it fits like a 2nd skin and keeps everything tight. it is VERY snug (see 2nd skin comment) though and at times gets too snug if i swell up. that's why i didnt wear it initially today cause yesterday it got really uncomfortable. now i'll just have to deal with it. it does not have to be removed for any bathroom needs and that is a good thing.