Available sizes: 3.5, 5.5, 6, 6.5, 7.5, 7, 8.5, 8. New Balance Shoes (Trainers) 373. Available in women's sizes. By New Balance. This season's must-have is the mule designed by New Balance. Thanks to the beige colour it is easy to mix with different styles. Do you dare try out this pair of trainers that defy the odds? To summarise...we love them!