Eureka Bero 30 Sleeping Bag - in stock now. FEATURES of the Eureka Bero 30 Sleeping Bag Shingle-style construction offers maximum warmth in a minimal package Generous comfort-cut Comfortable, warm-to-touch in.peachedin. polyester lining fabric Locking, 2-way zipper allows adjustments for ventilation Full length, insulated zipper draft tube with anti-snag guard defends against cold air intrusion Mateable with women's and long length (left side zipper) mummy style sleeping bags Insulated hood and chin baffles Internal pocket Compression stuff sack