High street retailer Marks and Spencer (M&S) has had more than 250 five-star reviews for a 'stylish' pair of £45 leather trainers that look near-identical to £110 designer New Balance. One shopper was on the lookout for New Balance trainers, but opted for the strikingly similar £45 M&S leather pair after spotting them online. The £45 M&S Collection Leather Lace Up Side Detail Trainers come in six different shoppers. The colours on offer include Black Mix, Dark Rose, Khaki Mix, Beige, Blue Mix and Orange Mix. The £45 M&S trainers have been designed them with a chunky sole to cushion…