T-Mobile is celebrating its recently awarded “Best Network” title with a host of perks for both new and existing users.

The Flex Chug Cap does not stay attached to the bottle. If you’re prone to losing caps (or things in general), you may prefer our pick from Takeya. You’ll need to use two hands to unscrew the cap.

The Hydro Flask 40 Oz Wide Flex Straw Cap Stainless Steel is on sale for $23. That's 54% off the original list price of $50. The Hydro Flask 32 Oz Wide Mouth Flex Cap is on sale for $22.