Girls' Merrell Little Kid & Big Kid Hydro Trekker Outdoor Shoes From backyard streams to rocky trails, the Girls' Merrell Hydro Trekker Outdoor Shoes are built for every muddy, splashy adventure. These lightweight, quick-drying shoes keep little feet comfortable and protected with a breathable mesh design and tough overlays that can handle rough play. A cushioned midsole softens every step, while the grippy outsole helps kids stay steady on slippery surfaces. Whether they're hiking, puddle-jumping, or heading to camp, these shoes are made to move as fast as they do.