MOOZO Waterproof Rear Under Seat Bike Saddle Bag, Double Pouch Bicycle Tail Pocket with Reflective Strip for MTB Mountain City Road Bike Water Bottle/Repair Tools Kit

I just bought it, and I like the size and the fact that it holds 2 bottles. Time will tell about its lasting quality.

Would be great if bottle position was different or bag was further offset from the saddle. As it is, the back of my thighs just barely touch the bottles with every rpm. That won't work for 6+ hour endurance rides which is what I needed the extra fluid capacity for.

I liked the design so I bought one for myself and gave a couple to my family. Great way to carry bike tools, keys, ect, and 2 water bottles.

I used it for a month and a half (~300 miles) and then it broke while I was riding it. The velcro attachments started splitting from the main fabric.My water bottles never fit well in it (it was too tight for them to fit easily), so I just used it for tubes and stuff.

I only gave this item 4 stars because I'm short (5'1") and had to raise the seat a little for it to be properly installed. My husband is 6'4" and it works perfectly for him. Very easy to access and grab my bottle without physically getting off my bike. It hold bottles in place snuggly and the compartment will easily hold a large phone, a hand towel, sunblock and hand sanitizer.

Easy to attach to the saddle and post. Lots of space inside. I especially like the dual side pockets for either water bottles or my phone and other smalls.

lil too big

Fits great, a lot of room. Great to have the extra water bottles on long rides.