Binders from Early2Bed: extreme chest consealer or tri top from underworks

[ElioAyla]

Hey guys.
I'm getting some stuff from Early 2 Bed and I figure I may as well get my first binder here too, free shipping and all that. So they appear to have 2 binders for sale. One is called Extreme Chest Concealer, the other is a Tri Top from Underworks.

So has anyone ever used either of these?
I am a fairly active person, so I hope it won't be too sweaty, at least not as sweaty as the neoprene waist slimmer.
And of course I want it to actually compress my chest.
I'm between a B and C cup. I plan to measure myself with a tape measure as described before ordering anything.
Any advice would be appreciated.

Here's the links to the binders:

http://early2bedshop.com/binder-extreme-chest-concealer.html

http://early2bedshop.com/binder-tri-top.html

[Nygeel]

Ordering from underworks is less expensive with shipping (I think). The tri top will leave you kind of sweaty but neoprine is maybe 50000x worse.