Swimming goggles

Swimming goggles, having a head strap defining grooves therein, comprising:

• a frame body;
• lenses received in the frame body;
• and buckles assembled on a left side and a right side of the frame body, each buckle comprising:
• a first cover and a second cover assembled together for accommodating and positioning the head strap;
• and a manipulation element mounted between the first cover and the second cover, and including:
• a bias bar and a manual bar interacting with each other to form an L shape for pivoting the first cover with the second cover according to the lever principle, and the bias bar abut against indented grooves of the head strap;
• a link arm, having two ends, one end of the link arm extending from the manual bar;
• and a first flexible arm and a second flexible arm extending obliquely from an opposite end of the link arm, the first and second flexible arms extending in opposite directions away from the link arm, and respectively forming a first pressing portion and a second pressing portion separate of the manual bar, wherein when the first pressing portion and the second pressing portion are pressed simultaneously, the first flexible arm and the second flexible arm are urged to be deformed upon pressure and to push the link arm, the link arm pushing the manual bar, the manual bar displacing in a direction reverse to the manual bar, whereby the bias bar disengages from the head strap.