Review on XLAB Stealth Pocket Frame Pack Sports & Fitness by Tim Ram

Excellent product. The problem with top tube boxes/bags for TT bikes is that they are either not aerodynamic (too big and/or square) or they don't fit well. It is smooth and also protects well. I have a bike with a stem that you can attach a forward facing strap around. Even if my stem were integrated I suspect it would still stay upright with two bottom straps. Worth a few bucks more compared to some of the cheaper stuff sold online. The size is perfect, with room for 70.3 nutrients (like half a dozen bars or jellies plus tire scoops). I recommend pairing this with a newly installed Delta lube with a separate multi-hit set plus a bottle between the bars (lots of products, I have an A2 speedfill). Stays securely on the top tube, holds enough nutrition, slim low profile so there is no aero sacrifice.