DD8 has suddenly cracked canter (after being VERY nervous) and is making great strides. Once she starts cantering out on hacks or jumping I assume it would be good to have her in a back protector. I've never worn one (only top eventers wore them in my day! Old emoticon..) and not sure what to look for - have heard good things about Decathlon.
Any recommendations for a slightly built girl who'll only be riding 1/2 times per week?