Tall skinny boy

Question

I’m hoping someone can help me! My son is about 5’4-5’5 but only between 100-105 lbs. I have such a hard time finding clothes for him! Size 16-18 in jeans fit length, but the width of them makes them unable to be worn. Even slim sizes are not thin enough for him. Shirts hang off him funny because they’re so wide, but we need the length of the bigger sizes. I know he’s self conscious which is why he hates going shopping so is there a brand out there that I’m missing that will fit his body type?! I don’t have a great picture of his body standing up, but this kind of gives you an idea. This was back in December so he’s even taller now, but this is the only full body shot I have. PLEASE HELP! This is so frustrating to see him walking around pulling his pants down so his ankles won’t show! 🤦🏻‍♀️

Answer

It won't let me add a link to Old Navy for some ridiculous reason, so ignore the link lol
Old Navy has boys sizes with a "slim", "regular", or "husky", fit option. 
So, for example, you pick your boys size and then "slim", "regular", or "husky", the length will be the same but the width/framing of the pant changes. 
Works for my tall, rail-skinny nephew 😊💕

Answer

My brother also has super long legs but is super skinny, we always went with Levi’s (granted they are pricy) because the slims usually fit really well, plus they had pretty diverse size options. 
I think we also got some from JcPenny? They were a little bit cheaper but it wasn’t always guaranteed they would have the scrawny boy sizes lol