The Alpha® SST (Scent Suppressing Technology), made of rubber-clad, naturally-insulating neoprene has a scent-proof gator on the top of the boots and provides scent control on the inside as well as the outside. This makes it a great choice for scent-free stealth while traveling to and from the treestand. With a nylon fabric lining for comfort and snag-proof durability, the boot is available in 1200 G. Thinsulate? Ultra Insulation for colder hunting conditions (1200 G. Thinsulate? - AVAILABLE IN MOSSY BREAKUP ONLY).(201608-201613) Height: 18"(201608-201613) Weight: 5.7 lbs.(2006108-200612) Height: 18"(2006108-200612) Weight: 4.6 lbs.