GROUND WORK IS HARD WORK.

The HAPO SD is a great fit for users who work low to the ground and is a user favorite. The system gives less resistance, making it easier to make a full bend. Because of the lighter spring system, the SD stays engaged and is ready to work when you are.

• Gives approximately 26 lbs. of assistance

• Provides over 20% less strain to the longissimus back muscle when lifting

• Available in 4 sizes (S0, S1, S2, S3) and fits 98% of users