When i go hosp appts i use a M&S Go Move bag- (part of the gym range) its a fabric bag, but strong with strong handles and a bottle pocket on both ends.It was £16 but might be a bit more now, i've had it about 4years.It zips up at the top, and theres a zipped pocket,which u can turn either way so you can keep it turned in &safe.Its a shoulder bag(or you can carry by the handles) .I take it to the spa as well.Its a good bag.The 2 end bottles are perfect,i pop in a water bottle in one, and a hand sanitiser & tissues in other end,and everything else inside.