New Balance Balance 323. Available sizes: 13 kid,1 kid,2.5 kid,2 kid.New Balance Shoes (Trainers) 323 Available in girl's sizes. by New Balance. With these trainers, New Balance has proven that sportswear can be chic and trendy! The 323 is the perfect combination of comfort and style. Do you dare try out this pair of trainers that defy the odds? To summarise...we love them! Product details • Sports shoe • Flat heel • Fastening: laces and touch 'n' close Fabric content and care advice • Uppers: 100% other materials • Lining: 100% textile • Cushioning: 100% textile • Sole: 100% rubber