легкий вариант для всего класса вот такой закупаем: http://www.nextdirect.com/ru/en/shopping/boys/schoolwear/1/4?pid=787501&curr=rub&lang=en&country=ru&curr=RUB&returnurl=%2fshop%2fgatt2%2f3%2fgatt2%2f7%2fgatt7%2f1%2fcat%2f429%2f0%3fnxti%3d0%26nxtv%3d000%26isort%3dbst%26curr%3dRUB%26country%3dru%26lang%3den&bct=%26quot%3bShop%20By%20Product%26quot%3b%26nbsp%3b%26gt%3b%26nbsp%3bYounger%20Boys%26nbsp%3b%26gt%3b%26nbsp%3bOlder%20Boys%26nbsp%3b%26gt%3b%26nbsp%3bSchoolwear%26nbsp%3b%26gt%3b%26nbsp%3bT-Shirtsи шорты некст трикотажныеВариант для улицы думаю купить найк или адидас