Do not be fooled by imitations.
The original Summit LockTM was the first proximal lock designed to control rotation and the only lock with ZERO clearance required. We have improved the original and created the Lowpro Summit LockTM for easier donning. Both locks are designed specifically for long limbs. There is no need to purchase a locking liner and you can use the socket adaptor of your choice. Summit LockTM can be used for any activity level, above or below the knee, for anyone up to 265 lbs.
For the bottom line:
The SummitTM and Lowpro SummitTM offer the highest profit margin
of any lock mechanism because you are converting a cushion liner
into a locking liner.






