http://www.rei.com/REI-Outlet/product/762469
http://www.rei.com/REI-Outlet/product/762470
一個是 Silkweight, 一個是 Midweight
差別在那裡?

Polarmax System 3
http://www.rei.com/REI-Outlet/product/760384
這件是刷毛嗎？前不久,在蹼樂另一家,買一件來穿
感覺很讚