sbyte

A numeric type used to store 8-bit signed integers. sbyte is an alias for System.SByte, and takes up 1 byte of memory. For the unsigned equivalent, use byte.

Valid range is -127 to 127 (the leftover is used to store the sign).

sbyte a = 127; // 127
sbyte b = -127; // -127
sbyte c = 200; // Error, cannot be converted
sbyte d = unchecked((sbyte)129); // -127 (overflows)