It's a healthy baby chubby. My oldest was full of rolls just like that all the way up until she started walking. She kept cute toddler rolls up until about 2.5 then she started getting a bit taller and thinned out considerably. She weighed 8 lbs 13 oz at birth.  My youngest was a bit heavier at birth but also an inch longer. So even though she weighed a bit more she looked leaner and didn't have those chubby baby rolls. She weighed 8 lbs 14 oz at birth.