G-1000 Lite Stretch: 52% polyester (recycled), 13% polyester (T400), 35% cotton (organic) Imported Double-woven stretch fabric made from partly recycled polyamide and elastane. Reinforcements on knees and leg endings in G-1000 Lite Stretch for extra durability. Zippered ventilation openings in the sides. Regular fit and available in three lengths: short, regular and long. UPDATE: Now with a new, more inclusive fit for improved movement and comfort.