From the AT-XR lock, to the safety mechanism, and even the adjustable belt clip, Aegis AT is designed to be equally usable in either hand.l SOG&';s patented Assisted Technology (AT) XR Lock, delivers fast, one-handed open and solid lock-up once open. A versatile high-carbon tool steel that is cryogenically heat-treated to SOG*s unique performance specifications. Designed for outdoor users, The Aegis AT pocket knife features rapid assisted opening using SOG*s innovative ambidextrous AT-XR Lock with an ergonomic handle and grip pattern for comfortable use. Aegis AT is an easy to carry folding knife, with a highly functional 3.1 cryogenically heat-treated D2 steel blade. Its powerful XR locking mechanism also features solid built-in blade locking safety and spine-mounted safety system. The next evolution of the legendary Aegis assisted opening knife.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }