Chunky Cotton Knit Baby Toddler Children's "oversize sweater" STYLE 100% cotton Booties and Bloomers sold separately Batch runs TRUE TO SIZE The style has a chunky knit "oversized look" BUT THE FIT IS TRUE TO SIZE. For example; A 9 month baby will fit well in our 6-12m sweater. The neckline, sleeve length and torso length is true to size. The arm width and bust width give the sweater its unique oversize emphasis.