# What are the different sizes for Nanit Breathing Wear?

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Source: https://support.nanit.com/en_us/what-are-the-different-sizes-for-nanit-breathing-wear-Bkho2AKlg

Last updated: 2025-08-29T04:50:44.225Z

**Nanit Bodysuit**

**Size/Age**

**Weight**

NB-0M

6-9 lb

0-3M

9-12.5 lb

3-6M

12.5-17 lb

6-9M

17-21 lb

**Nanit Breathing Band**

**Size/Age**

**Weight**

**Min Chest Circumference**

**Max Chest Circumference**

0-3M

6-12.5lb

11.25 in

19.75 in

3-12M

12.5-25 lb

16 in

23 in

12-24M

25-30 lb

19.5 in

27 in

**Nanit Pajamas**

**Size/Age**

**Weight**

**Length**

NB - 0M

6-9 lb

18-21.5 in

0-3M

9-12.5 lb

21.5-24 in

3-6M

12.5-17 lb

24-26.5 in

6-9M

17-21 lb

26.5-28.5 in

**Nanit Sleeping Bag**

**Size/Age**

**Weight**

**Length**

3-6M

12-18 lb

23-26 in

6-12M

16-22 lb

25-30 in

12-18M

22-28 lb

30-35 in

18-24M

26-36 lb

35-40 in

**Nanit Swaddle**

**Size/Age**

**Weight**

NB

5-12 lb

0-3M

7-14 lb

3-6M

14-18 lb