If they have raw skin at the bottom of their jaw, the jacket is shifting up... it's either not tight enough or doesn't fit properly. (Infant and toddler jackets have a crotch strap to prevent that)

We've had nothing but success with the kids Hyperlite jackets ($30) at Costco. They have a super generous return policy.... your kids could test them in the water, if they don't work, Costco will take them back, no questions asked.

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