Brand vs brand

Cat & Jack vs Cloud Island sizes

Of Cat & Jack's 11 baby and toddler sizes, 9 line up closely with a Cloud Island size, 0 are partial matches, and 2 have no clean match. Both charts list weight and height, so the comparison uses both.

Closest pairs: Cat & Jack Preemie = Cloud Island Preemie, Cat & Jack Newborn = Cloud Island Newborn, Cat & Jack 0-3M = Cloud Island 0-3M, Cat & Jack 3-6M = Cloud Island 3-6M.

Watch the labels: Cat & Jack Preemie is closer to Cloud Island Preemie than to Cloud Island's own Preemie; Cat & Jack Newborn is closer to Cloud Island Newborn than to Cloud Island's own Newborn.

Cat & Jack True to sizeCloud Island True to size

Based on published size charts compared with other brands.

Size by size, on one scale

Each block is one size, placed where the brand's chart puts it. Blocks that sit above each other fit the same baby.

Weight (lb)

Cat & Jack

Preemie: up to 5.5 lb
Newborn: 6 to 8 lb
0-3M: 9 to 12 lb
3-6M: 12.5 to 16 lb
6-9M: 16.5 to 19.5 lb
12M: 20 to 23 lb
18M: 23.5 to 26 lb
24M: 26.5 to 28 lb
2T: 26.5 to 28 lb
3T: 28.5 to 32 lb
4T: 32.5 to 37 lb

Cloud Island

Preemie: up to 5.5 lb
Newborn: 6 to 8.5 lb
0-3M: 9 to 12 lb
3-6M: 12.5 to 16 lb
6-9M: 16.5 to 19.5 lb
12M: 20 to 23 lb
18M: 23.5 to 26 lb
24M: 26.5 to 28 lb

Height (in)

Cat & Jack

Preemie: up to 17.5 in
Newborn: 18 to 20 in
0-3M: 20.5 to 23.5 in
3-6M: 24 to 25.5 in
6-9M: 26 to 27.5 in
12M: 28 to 30.5 in
18M: 31 to 32.5 in
24M: 33 to 35.5 in
2T: 33 to 35.5 in
3T: 36 to 38.5 in
4T: 39 to 43 in

Cloud Island

Preemie: up to 17.5 in
Newborn: 18 to 20 in
0-3M: 20.5 to 23.5 in
3-6M: 24 to 25.5 in
6-9M: 26 to 27.5 in
12M: 28 to 30.5 in
18M: 31 to 32.5 in
24M: 33 to 35.5 in

Cat & Jack size to Cloud Island size

Cat & Jack	Closest Cloud Island	Match	Weight: Cat & Jack / Cloud Island	Height: Cat & Jack / Cloud Island
Preemie	Preemie	Close match	up to 5.5 lb / up to 5.5 lb	up to 17.5 in / up to 17.5 in
Newborn	Newborn	Close match	6 to 8 lb / 6 to 8.5 lb	18 to 20 in / 18 to 20 in
0-3M	0-3M	Close match	9 to 12 lb / 9 to 12 lb	20.5 to 23.5 in / 20.5 to 23.5 in
3-6M	3-6M	Close match	12.5 to 16 lb / 12.5 to 16 lb	24 to 25.5 in / 24 to 25.5 in
6-9M	6-9M	Close match	16.5 to 19.5 lb / 16.5 to 19.5 lb	26 to 27.5 in / 26 to 27.5 in
12M	12M	Close match	20 to 23 lb / 20 to 23 lb	28 to 30.5 in / 28 to 30.5 in
18M	18M	Close match	23.5 to 26 lb / 23.5 to 26 lb	31 to 32.5 in / 31 to 32.5 in
24M	24M	Close match	26.5 to 28 lb / 26.5 to 28 lb	33 to 35.5 in / 33 to 35.5 in
2T	24M	Close match	26.5 to 28 lb / 26.5 to 28 lb	33 to 35.5 in / 33 to 35.5 in
3T	None	No clean match	28.5 to 32 lb / n/a	36 to 38.5 in / n/a
4T	None	No clean match	32.5 to 37 lb / n/a	39 to 43 in / n/a

Cloud Island size to Cat & Jack size

Cloud Island	Closest Cat & Jack	Match	Weight: Cloud Island / Cat & Jack	Height: Cloud Island / Cat & Jack
Preemie	Preemie	Close match	up to 5.5 lb / up to 5.5 lb	up to 17.5 in / up to 17.5 in
Newborn	Newborn	Close match	6 to 8.5 lb / 6 to 8 lb	18 to 20 in / 18 to 20 in
0-3M	0-3M	Close match	9 to 12 lb / 9 to 12 lb	20.5 to 23.5 in / 20.5 to 23.5 in
3-6M	3-6M	Close match	12.5 to 16 lb / 12.5 to 16 lb	24 to 25.5 in / 24 to 25.5 in
6-9M	6-9M	Close match	16.5 to 19.5 lb / 16.5 to 19.5 lb	26 to 27.5 in / 26 to 27.5 in
12M	12M	Close match	20 to 23 lb / 20 to 23 lb	28 to 30.5 in / 28 to 30.5 in
18M	18M	Close match	23.5 to 26 lb / 23.5 to 26 lb	31 to 32.5 in / 31 to 32.5 in
24M	24M	Close match	26.5 to 28 lb / 26.5 to 28 lb	33 to 35.5 in / 33 to 35.5 in

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Every Cat & Jack size in Cloud Island

Close match

Cat & Jack Preemie lines up closely with Cloud Island Preemie.

Weight (lb)

Cat & Jack Preemie up to 5.5 lb

Cloud Island Preemie up to 5.5 lb

Height (in)

Cat & Jack Preemie up to 17.5 in

Cloud Island Preemie up to 17.5 in

The shaded column is the Cat & Jack range. Bars show what each brand publishes for the size.

Based on published size charts. Cat & Jack chart and Cloud Island chart.

More comparisons

Charts retrieved October 4, 2026 (Cat & Jack) and October 4, 2026 (Cloud Island). Sources are listed on each brand page. This site is not affiliated with either brand.