Quick connect buckle on chest, Tongue buckles on leg straps, New breathable padding, 3” wide removable aluminum bar in seat. Size S & M has a 3” x 14” bar, Size L, XL, & 2XL has a 3” x 16” bar. Easy connect 70° aluminum D-rings back and hips, Shoulder strap adjusters, Fall indicators, Tool rings, Lanyard Parks, D-rings: 6 Aluminum: 1-back, 2-hips, 2-seat strap Steel: 1-chest