Snowboard and skis for use in loose snow

A snowboard or ski for use in loose snow, the snowboard or ski having inwardly curved edge portions where the snowboard or ski has greater width at both ends at the transition to the tips than at the middle of the snowboard or ski, with upwardly curved tips, wherein:

• the base is divided into a right running surface and a left running surface which two running surfaces together form a downwardly directed apex in the entire length of the snowboard or ski along a partition line between the two running surfaces when seen in a cross direction of the snowboard or ski;
• the right running surface includes a right edge, and the left running surface includes a left edge;
• each of the running surfaces forms an angle with the ground, where the sum total of the two angles is less than 90 degrees everywhere along the length of the snowboard or ski;
• and
• the angle which the running surfaces form with each other is smaller in the middle of the snowboard or ski than at the transition to the tips.