b&q bike helmet Watts 2.0 MIPS (Barn Deal) – The Float Life it fits 50–54 cm and is Ce BYB/RNG White BQ-01 High quality

It has a compact shape that sits comfortably on your back, making it easy to wear when you are heading out for coffee, running errands, or meeting friends

Anti-Theft Features: eXomesh slashguards Front, bottom and side fabric body panels of the bag have built in stainless steel wire mesh panels Slashproof carrysafe shoulder straps The shoulder straps are reinforced with stainless steel wire Turn & lock strap hook The shoulder strap has releasable security hook that allows you to attach the strap to a fixture to stop thieves from easily walking off with your bag Roobar anti-theft anchor lock - Lock down zippers and allows both compartments to be locked with a single padlock Smart zipper security Zipper pullers can be attached to a discreet security hooks or placed under & through a hypalon tab to prevent pickpockets reaching into your bag RFID-blocking pocket Special blocking material prevents high tech identity thieves from downloading and stealing personal information stored on micro chips in your passport and credit cards Additional Features: Sustainable ECONYL fabric engineered from regenerated nylon waste Dual top grab handles with buttoned strap to clip handles together Padded and adjustable backpack shoulder straps Spacious main compartment with framed opening contains padded laptop/tablet sleeve and organisation panel with RFID blocking zippered pocket, sleeve pocket and pen sleeves Laptop sleeve fits most laptops with screens up to 11.6 Framed opening on main compartment for easy access Front panel zippered pocket External Size: 35cm x 26cm x 13cm Max

The downside is cost, as the minimum order quantity for zippers is usually 100 or more per color

Your cycling backpacks primary feature is getting your gear from one place to another, but a few others will be helpful