What Our Gearhead(R) Experts Are Saying:"I ran the Top Tube Waterproof Pack Ultra on a bikepacking trip where my frame had zero room left up front. I still kept both bottle cages open the whole way, and the aero shape never got in the way of standing climbs."Your frame's already packed tight, but you still need somewhere for the snacks, the phone, the cable. The Top Tube Waterproof Pack Ultra fills that gap, a slim bag that tucks along the top tube without forcing you to give up a bottle cage. It opens one-handed and keeps everything dry when the weather turns, while the aero shape stays out of the way on long climbs out of the saddle.