Hi, I'm looking to get a Mei Tai as a baby gift for my sister as I had one for my two children and loved it to pieces (and shrunk it in the tumble dryer :( ). My sister is around a size 16/18, so I guess right after baby she will be over a size 20 if my own personal waist size etc after children is anything to go by, and I know it doesn't pop back very quickly. Her husband is much larger in every way so I'd also like it to fit him (I think he's over 6ft and almost a 50 inch waist) - would a normal mei tai fit them? Or do I need to buy one with extra long straps? I saw one advertised but it was just under £70, and I was aiming to pay no more than £50 (I bought my own for £15 so I'm a very budget buyer).