Odlo warm baselayer set infants the odlo warm baselayer set makes the ideal sporting underwear for your little one comprising of a two piece set a top with crew neck and long sleeves and an all over print design as well as trousers with an elasticated waist both garments have flatlock seams for comfort and a temperature control system to bring a comfortable baselayer warmth in wintry conditions infant sports baselayer set 2 pieces baselayer top crew neck long sleeves