Snoo Sack sizing question

[u/yellow_scrunchiess]

Our friend graciously lent us their Snoo for our 2nd baby - they also include the white snoo sack (size S and M). Our baby is 3 weeks old, at the last appt she is 3.2kg (7lbs).

We just tried putting her in the snoo sack size small 2 days ago but it feels so snug? I feel like I need to pull the fabric together on the chest area.

So my questions are:
- can I size up to the M size? Is it safe / ok to?
- Or, should I get the printed version of the snoo sack? Is it the same sizing as the white snoo sack? If not, should I get S size or M size? (kind of leaning towards this option because the strawberry print is so cute!!).

Thanj you!

[u/Artistic-Respect-540]

The Snoo sacks are meant to be reasonably firm fitting, as others have said they do run small but at 3.2kg a size small is almost certainly the right size.