These booties are perfect for my active little boy.  The magnetic closures are strong enough to keep the booties on even during his active kicking. The fabric is super soft and feels very cozy.  I love them so much I bought several pairs in multiple colors.  I also have the other booties with velcro (brand forgoten) and snap (Zutano) closures and all work equally well, so get these for the slightly lesser price.