Indoor training using smart apps.
This is a tried and true way to ensure you don't get chafing in the sensitive areas. Especially for the long days in the saddle 100 miles, but also for short rides if you ride more than a couple of time per week.
This bag is very well made, materials are bombproof, and the use of Velcro (usually a deal breaker for me do to lifespan issues) is backed up by a simple hook and loop closure. The bag came with a webbing strap for the head tube that is difficult to thread through the buckle on the bag, but otherwise setting it up on the bike was easy. Nice size for a long day out on the bike with a cold start and an undecided route, or just anytime you dont want your jersey pockets bursting at the seams.
Dont expect to access this bag while riding- get the Mag Tank from Revelate for that.