剛看了一下，布料和填充材質都改了，不知道是cost down還是升級：
下面是atom lt gen2的材質：
Materials TORAY Mechanical Stretch Mini-Rip Lightweight
PONTETORTO 7.5oz Hardface Fleece
LI PENG High Air Perm Nylon Ripstop
CLIMASHIELD 2oz Combat Fibrefill Insulation with DWR
Coreloft換成CLIMASHIELD
Polartec power stretch換成PONTETORTO
整個產品全面材質都更新了，還多了個胸袋