Hi there! I understand you're having trouble opening your bag (cart) in the Nike app on your iPhone. Let's see what could be causing this and how we can fix it.

Could you please let me know if:
- You see an error message when trying to open the bag? If yes, what does it say exactly?
- Are you logged into your Nike account in the app?
- Have you tried opening the bag on Nike's website via a browser to check if it's working there?

While you share that, here are some quick steps you can try to resolve this:

1. Empty your bag on the Nike website: Sometimes items stuck in your cart cause this issue. Log into your account on nike.com using Safari or another browser on your iPhone, go to your bag (cart), and remove all items. Then try the app again.

2. Close and restart the app: Make sure the Nike app is completely closed (double-click the home button or swipe up, then swipe the Nike app off the screen). Reopen it and check the bag.

3. Log out and log back in: Go to your Nike profile in the app, sign out, then sign back in. This can refresh your session.

4. Clear cache by reinstalling the app: If none of the above works, uninstall the Nike app from your iPhone and reinstall it from the App Store. This refreshes the app data which can fix bugs.

If you've tried these or still face problems, please let me know any error details or if the issue is specific to certain items. That will help me guide you further.

Are you able to check on the website and try these steps?

Can not open bag

Thanks for your patience! Based on what I found, this "Couldn’t open bag" issue users face often happens when there are stuck items in the bag stored on the Nike website profile. The Nike app then can’t properly load the bag contents. Here’s a focused solution for your iPhone and iOS 18.6.2 setup:

1. Open Safari (or any browser) on your iPhone and go to nike.com.
2. Log into your Nike account with the same credentials you use in the app.
3. Navigate to your bag (shopping cart) on the site.
4. If you see any items in the bag, remove or empty them completely.
5. Log out from the website and close the browser.
6. Now open your Nike app and try opening the bag again.

This step has helped many users fix the problem, as the site and app sync better once the cart is cleared1.

If this still doesn't help, please let me know if there's any error message showing in the app or if this happens every time or just sometimes. Also, try closing the app completely before reopening it after clearing the website bag.

Are you able to try clearing your online bag and see if that resolves the issue?