刚看了一下，布料和填充材质都改了，不知道是cost down还是升级：
下面是atom lt gen2的材质：
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换成CLIMASHIELD
Polartec power stretch换成PONTETORTO
整个产品全面材质都更新了，还多了个胸袋