Pampers help

So my sweet girl is 15 weeks. Two weeks ago she was weighing in at 12lbs. I have used Pampers swaddlers since birth and really love them. However the sizes/weight recommendations seem off for us. She is in size 2 but once again she is getting red marks on her thighs. I've heard Pampers cruisers are better for chubbier thighs is this true? Is there a better brand for bigger thighs? I stuck her in a swaddlers size 3 I had, and that seemed to be ok, as long as I practically overlap the little waist straps🙈. It said they were good for 16-28 lbs 🤷‍♀️