Large main compartment with easy access to contents. Headphone port. Ripstop polyester construction. Reflective piping. Stability priovided by 3 compression straps. 270 degree water resistant zips. Shoulder straps with quick release attachments. Straps buckle across chest with hip-pads - keeps it secure - spreads the load. Extra storage in two side pockets. Padded breathable back brace and shoulder straps with change pocket. Helmet carrier folds out of base. Convenient carry handle. Zipped front pocket. Netting pocket. Bungee section.