The Haven RAINPROOF FRAME 1.6 top tube bag can be placed on the stem or on the seatpost tube, or both at the same time. It's perfect for those things that need to be kept handy, such as your mobile phone, protein bars, etc. You can reach them at any time, even while riding. Like other bags from the RAINPROOF series, it is made of seamless bonding from waterproof 800D nylon with an additional TPU coating. The uncompromising waterproofing is underlined by high-quality waterproof zippers, whose sliders are hidden in "shelters" to avoid unwanted noise (clinking, clanking). The zippers also have a lock to stop movement. The bag is very firmly attached thanks to the silicone-based straps used which prevent movement and possible abrasion of the paintwork.