Peeing through diapers

Hi everyone, so my baby boy is turning 7 months soon his currently using pampers size 5 (11-16kg) his however only 10,6kg but we’ve always had to size up since his tall. Lately his been peeping through his diapers while the diaper itself is not full. His diapers are the correct size for him, no matter how many times we change him somehow it happens. It doesn’t happen too often during the day but it does at night and it’s enough to become a bit annoying. I’ve been thinking about using Huggies as I’ve heard they work better for baby boys? Any suggestions or advice?

I’ve heard of Pampers swaddlers but they are extremely had to find.