The brompton mini o bag hile the small size and sleek shape make it a great streamlined option especially on longer rides ortlieb39s usual meticulous welded construction ensures that the contents will stay dry no matter what the weather has in store it39s semi rigid construction will help protect the bags contents eg camera phone etc the mini o bag is suitable for all types of brompton includes a shoulder strap for easy handling off the bike brompton mini o bag featur