I just received this product and decided to test it and see how it works. Filled up to 3 liters and started standing upside down or with lid down. Once the lid is under water pressure, it will begin to flow out of the lid. I tried to make the hat as tight as possible and nothing! flows every time. Also, the seal in the top bladder opening is quite flimsy, and at one point I was able to fully open the seal with very little effort. I don't think the seal will hold much weight before it comes loose. Do not buy this product! This company should test their products before they sell them! A big problem I noticed with this list is product reviews. I bought it blindly because I was in a hurry to buy it for my upcoming trip and also because the overall rating is 4 stars. So I didn't bother to read the bad reviews and do my research (like I usually do). Wow! What mistake! A lot of the 4 star reviews are essentially misleading and totally useless (I'm trying to be polite here). If you actually take the time to read them, you'll see that many of these 4-star reviews were mostly written by customers who had the exact same issues (leaks and such), but the company offered a "good" customer service, so they decided to change their original rating from 1.-2 stars to 4 stars.wow.4?! I understand that good customer service is important and I thank them for that, but changing your score to 4 because of customer service and not product quality is misleading to say the least. Reviews should be about the product and not the company's customer service, this product would get a maximum of 2 stars and probably less. Do yourself a favor and stay away from this product!
6 Pcs Reflective Bands: High Visibility Running Gear For Women Men - Safety Straps Bracelets For Running, Cycling & Walking
46 Review
Segmented Beaded Kids Jump Rope For Exercise And Outdoor Activities - Durable And Shatterproof - Easily Adjustable And Light Weight Skipping Rope For Kids
48 Review
Smart bracelet Xiaomi Mi Smart Band 6 CN, black
50 Review
Ultimate Fitness Tracker: Xiaomi Mi Smart 🏋️ Band 6 - 1.56'' Offers Unmatched Features and Performance
78 Review
The Friendly Swede Collapsible Bucket With Lid, Folding Bucket For Camping, Travel & Gardening, Portable Water Bucket W/ A Handy Tool Mesh Pocket, Collapsible Water Container, Camping Water Container
50 Review
Smart speaker VK Capsule mini, marine blue
130 Review
Realme Buds T100 Wireless Headphones, Black
51 Review
BAOFENG UV-5R5 Dual Band Two-Way Radio: 5W Power, VHF & UHF, Complete Kit with Large Battery (Camo)
57 Review