Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
M size is way too large for my 4yo daughter but easily can roll the sleeves. Love the pouch that it came with - you can store the raincoat. The raincoat is thin (no lining) but great during rainy season. Def gets my recommendation. Thanks.