The pack is great. Drop's shipping is horrible
This is a great pack for running, Spartan races, trail running, etc. The pressurized water bladder is the key.
My complaint is that Drop insists on using FedEx Smartpost for every item I've ever ordered from them. Smartpost is the very worst shipping service available. It combines the incompetence of the very slowest and cheapest FedEx ground rate (probably on the back of a donkey) with the general malaise of the US Post office. In the days of Amazon 2 day shipping, the 7-14 days of UnSmartPost is a poor business decision and aggravates your customers, if you couldn't tell.
Seriously, Drop. Charge another $1-2 in shipping and use UPS Ground or USPS Priority. They work great. Instead, the pack ships on Monday, arrives in my city on Sunday, is handed off to the post office on Sunday, and it sits there for 4 days. Yeah. I even check the status and it says it's in town and "There is no delivery time pending". Finally, FedEx picks it up, again, from the post office and delivers it. I could've ridden my bike across country, picked up the Geigerrig, and used it to hydrate while riding back across country. And I'd have still been there before the package arrived.
The items you sell are good. The shipping choice is complete, utter and unmitigated crap. Amazon has upped their game. Now up yours!