Just to add my two cents - my husband's cousin's wife always wore flip-flops - she slipped on the basement stairs two years ago and the flip didn't flop - stayed on her foot and caught on the stair tread - she fell under the stair railing onto the concrete floor - broke her checkbone and jaw - left shoulder and as she had just had a double hip replacement - damaged her hip - will never be the same - so unless you're really stable in your flip flops - don't take the chance !