Leather Working Group Gold-rated waterproof nubuck leather
GORE-TEX footwear fabric with 71% recycled polyester face fabric
Dual-density CMEVA midsole with HUBBLE® heel and SwallowTail™
Late stage MetaRocker 

 with integrated flex grooves
Vibram Megagrip rubber with Traction Lug
5mm lugs
Abrasion resistant toecap and heel
Waterproof membrane bootie construction
Anatomical Achilles construction with heel pull tab
Topically applied PFC-free water repellency treatment
Rubberized EVA midsole
Molded PU sockliner with 50% soybean oil
51% Recycled polyester quarter mesh and tongue mesh
90% Recycled polyester exterior collar mesh
80% Recycled polyester lining mesh
80% Recycled polyester strobel board