- The Bibbi bag is a spacious crossbody bag that combines a sporty look with simple elegance. This is a practical bag with several internal pockets and is perfect for busy everyday life. The bag has two straps, one of which is shorter and decorated with a rubber SILFEN logo. The other, longer strap is adjustable and detachable. Bibbi is made from 100 % rPET which is made from recycled plastic bottles, making this bag a green alternative.