Available sizes: 3 toddler,4 toddler,4.5 toddler,5.5 toddler,6 toddler,7 toddler,7.5 toddler,8.5 toddler,9.5 toddler. Puma Shoes (Trainers) SMASH 3.0 INF. Available in boy's sizes. by Puma. Put on your seatbelt: we are taking off for planet trendy with Puma and these brand new trainers! The black colour and Suede upper make it a first-class product. Another great feature? A fabric lining and a rubber sole. Undeniably the favourite model of little trendsetters!