You get what you pay for. This is made in standard Halloween cheap material- good for one night trick-or-treating and maybe a couple months of occasional playing dress up.  The MEDIUM size fits my four year old who is 47" and 65 lbs.  His clothing size pants is 6 or 7.  That gives you an idea of the sizing.  He will have a blast in this on Halloween.  I recommend this for practical purposes.  :-)