Features:

• Boot straps adjust to ankles varying several inches in diameter
• Removable calf loops add comfort by placing a two-degree bend in the knees to help reduce load
• Manufactured of a tough yet pliable blend of Du Pont Hytrel
• Double-lock system ensures safety and security
• Compatible with Teeter Hang Ups inversion racks, bars, tables

Editor Reviews:

Product Description:
Hang Ups SL Spyder Gravity Boots are designed to be used with the following Hang Ups products: the EZ-Up Inversion Rack, Inversion Bar and F5000 Inversion Table.

Amazon.com Product Description:
Teeter Hang Ups Gravity Boots provide an ankle-conforming fit through two "fine-tuning" buckles with micro-adjusting ratchets which fit the exact size and taper of your ankle. You can custom fit each inversion boot quickly; a custom fit typically takes less than 20 seconds per boot. The flexible shell is made of a tough yet pliable blend of DuPont Hytrel, which helps to minimize pressure points. A special blend of 5/8-inch foam is designed to give maximum comfort with minimum compression. Other features include:

• Removable calf loops add comfort by placing a two-degree bend in the knees to help reduce the load on knee joints
• Boot straps adjust to ankles varying several inches in diameter
• Ratcheting, double-lock system ensures safety and security
• Each boot weighs only 2.5 pounds
• One size fits most

They can be used with the following Teeter Hang Ups products: the EZ-Up Inversion Rack, Inversion Bar and F5000 or F7000 Inversion Table.

Manufacturer's Warranty
Full five-year warranty coverage on structural and soft parts

About Teeter Hang Ups
Roger and Jennifer Teeter founded Hang Ups Inversion Products in 1981 and have been dedicated to manufacturing quality inversion products ever since. Roger and Jenny truly believe in the benefits of this simple, natural form of therapy that has been around since 400 BC. In the late 1970’s, Roger tried many forms of therapy to help manage his pain. He finally discovered that by inverting, he was able to relieve his back pain and begin the road to recovery. He credits inversion for keeping him pain free, healthy, and active. Inversion has changed Roger's life, and now he is dedicated to sharing his knowledge of inversion and quality products.

STL International, creator of Teeter Hang Ups brand inversion equipment, has pioneered standards for quality and performance in the inversion market. All Teeter Hang Ups F-series inversion tables are classified in accordance with UL 2601-1 (medical equipment in a clinical setting), a rigid specification that tests the structural integrity of the equipment.

Rating : - Definitely helps with the bulging disc
Work as advertised, and seem sturdy, with thick, firm cushioning...for those looking to stretch your spine to alleviate back pain associated w/bulging discs, I can say they definitely help.

However, the removable calf loops seem like just a gimmick...they don't create any bend in the knees...they don't do anything, other than get in the way when putting the boots on and taking them off.

Also, even with the thick cushioning, there is most definitely some strain placed on the ankles...took me a week or two to get used to that, but if you have weak ankles, or a low tolerance for discomfort, you'll probably want to just go for the inversion table.