Outer Material: Synthetic Inner Material: Synthetic Sole: Rubber Closure: Hook & Loop Available sizes: 11.5 kid,12 kid,1 kid,1.5 kid,2.5.hummel Shoes (Trainers) ACTUS RECYCLED JR Available in girl's sizes. by hummel. These sport chic trainers from Hummel are an absolute must have. We love the dynamic design and the black Mesh upper. The synthetic sole and the comfortable fabric lining make them a must-have. Do you dare try out this pair of trainers that defy the odds? Undeniably the favourite model of little trendsetters!