Line set confusing 3 pieces of burgundy pants

Line set confusing 3 pieces of burgundy pants (single cotton lycra material) Size 12 Shirt width 38 length 58 T-shirt 42" wide by 55" long Pants length 90 Size 14 Shirt width 43 length 59 T-shirt width 44 by 60 Pants length 92 Size 16 Shirt width 45 length 64 T-shirt width 47 length 63 Pants length 94 Size 18 Shirt width 48 length 67 T-shirt text width 50 length 67 Pants length 95