The top has a handy 1/2 zip for a snug fit and they can open it to cool down too Featuring flat seams for added comfort, the bottoms feature an elastic waistband for a secure fit Finished with raglan sleeves and contrast patches at the top\'s sides, this microfleece thermal underwear set will help them make the most of the winter months without exposing them to the cold The set contains a top and bottoms for full body coverage. 100% Polyester Product Code: UCBLSEK20003