We’re not sure who appreciates the change in season more, the rug rats who’ve been playing in basements for the past six months or the parents who’ve been trapped inside with them.That said, neither of you wants to mess up a summer’s day.The occasional bump and bruise on the jungle gym builds character, but when it comes to their noggins use your head. Little Nutty’s adorable helmets ($45) have a built-in spin dial that guarantees protection with a snug, comfy fit for scooter racers, cyclers, and even push-along riders.Protect shoulders, knees, and noses from the sun’s rays with Little Twig’s new mineral-based sunscreen ($20). With an SPF of 30+, the all-natural formula spreads on smoothly without leaving them greasy. Plus, it’s waterproof, unscented, and dermatologist tested for even the smallest members of your brood.When it’s time for a break, enlist the help of a Luna Lou ice pop cozy ($4). The handmade felt covers keep little hands warm while kids enjoy a cold summer treat, and they have moisture-wicking properties to help fend off the stickiest situation of them all — popsicle drips.Dive headfirst into summer with swimsuits for minis.Photos: Courtesy of Little Nutty; Courtesy of Little Twig; Courtesy of Luna Lou.