Merrell Kids - Hydro Lagoon (Toddler/Little Kid/Big Kid). Color Grey/Black/Royal Textile. On sale for $26.25. MSRP $35.00.. Brand NameMerrell KidsProduct NameHydro Lagoon (Toddler/Little Kid/Big Kid)ColorGrey/Black/Royal TextilePrice$26.25MSRP: $35.00