My kid wore this hoodie every day on our beach trip and it never felt clammy, even after hours in the sun. The bamboo-based fabric drapes nicely instead of clinging, and the fit leaves room to move without looking baggy.
Alexander★★★★☆
The bamboo fabric feels noticeably softer than the polyester sun shirts we've tried, and it's held up fine through a few washes. Only gripe is the hood runs a bit big on my eight-year-old, but he doesn't seem to mind.
Scarlett R.★★★★☆
The bamboo fabric is genuinely soft and my kid wore it all day at the lake without complaining about the heat. Only thing is it runs a bit big, so size down if your kid is between sizes.