PETZL - SITTA, Climbing Harness for Professionals Other TESTED TECHNOLOGY: The SITTA features WIREFRAME Technology construction. Spectra strands are used in the waist belt and leg loops to give optimal load distribution without the use of foam. LIGHTWEIGHT AND COMPACT: The extremely thin waist belt and leg loops offer a sleek design, with compactness and lightweight pushed to the maximum. COMFORT AND DURABILITY: The use of bonded fabric in the waist belt avoids pressure points and gives optimal wear resistance. The lack of through stitching eliminates chafe and pressure points in the waist belt. EASY ADJUSTMENT: DoubleBack HD buckle in forged aluminum has a slim, rounded design that offers good handling and smooth strap glide for quick and easy waist belt adjustment. FULLY EQUIPPED: Reinforced tie-in points for improved resistance to wear from rope friction. Eco-designed harness, incorporating textiles that meet the strictest environmental standards.