Full strides, cartwheels and even inevitable yard sales on the mountain won't split these durable, waterproof pants. Constructed with thermally efficient Heatseeker™ insulation, these free-fitting, breathable pants are designed to withstand cold temperatures and loads of activity. EZ (easy) Grow feature extends the length and life of this pant, with added fabric available at cuff to let out (up to 2") when girls need a longer pant.