Review on Stay Warm and Active with TYR Sport Girls' Solid Thermal for Toddlers and Little Big Kids by Cliff Gibs

I bought this suit for my skinny daughter to wear to swimming lessons to stop her miserable shaking, but it is too baggy/loose and too short in the upper body for her. I bought a size 7/8 for my 6 year old daughter who is 45 inches tall but only 35 pounds. It's WAY too loose, but there's no room in the crotch for me to go down a size (and she's mostly legs, she doesn't have a long torso). So people who think this suit is tight must have kids much heavier than me - if you're buying it for a skinny kid keep looking. I'm still looking, so if anyone has an idea please help me.