body board: materials are environmental, no harm!Prices are very favorable.IXPE top,EPS core,HDPE bottom 1.Top skin: IXPE2.Core: EPS3.Bottom: HDPEWe adopt hot-welding technology, it is very firm,good quality.Sizes: 38'',40'',42'',43'',45'' you can choose. We also can do as per your requirements high quality foam IXPE bodyboard