#ichibanisichiban means continual improvement and real world innovations like blackZERO #geoprene on the 2MM and 3MM Scipio as well as on the inside of the 2MM 2103 Jacket. #geoprene with blackZERO Technology is over 98% water impermeable and literally reflects your own body heat - making said products the lightest and warmest - pound for pound - in their class. Shop the link in our IG bio #lovematuse #da2006 #ckth