PETZL Fractio Caving Harness Buckle closure High-strength polyester webbing provides excellent durability. Adjustable double waist belt and adjustable leg loops are extremely comfortable and fit a wide range of users. Leg loops are reinforced with TPU for greater resistance to abrasion. Two Dyneema equipment loops are extremely durable. Aluminum attachment points facilitate placing the ventral carabiner and extend the life of the harness. Rear buckle with webbing flap for wear protection.