Rubber upper with a thermic fit. 4-way stretch bootie. 5mm of insulating foam with a sock-like fit. Breathable Ortholite premium insole: an open cell PU foam thats 95-100 percent breathable, odor resistant, and anti-fungal. Bogs Performance Outsole: all purpose traction that releases mud and crud. Internal TPU shank provides a stable foundation. Imported. Weight of footwear is based on single item, not the pair.