sentences:  Shirts, gis or long pants (including gi pants) are not allowed.Fighters must use approved light-weight open-fingered gloves, that include at least 1" of padding around the knuckles, (110 to 170 g / 4 to 6 ounces) that allow fingers to grab.These gloves enable fighters to punch with less risk of an injured or broken hand, while retaining the ability to grab and grapple.