GS stands for "Grade School" and is used by Nike to identify sneakers that are intended for smaller sneaker fans. The term is used to indicate that the shoes are designed and sized for children in grade school, typically aged between 6 to 12 years old. Other similar terms used by Nike include PS, which stands for "Pre School" for even smaller children, and TD for "Toddler" sizes. These terms are commonly used in the sneaker community to help identify the intended audience for a particular shoe.
