slippers
The Spanish word 'zapatillas' translates to 'slippers' in English. This is a noun used to refer to a type of light, comfortable shoes that are worn in the home. They are often made of soft or warm materials and can come in various styles, from open-heel sandals to fully covered foot-wraps.
My favorite trainers are the ones I'm wearing right now.
In this sentence, the speaker is expressing their preference for a particular pair of trainers out of all that they own. They also specify that these favourite trainers are the ones they are currently wearing.
Where are my running shoes?
This is a question where the speaker is looking for their running shoes. They are unsure of the location and are asking someone else if they know where they are.
The shoes you're wearing are very pretty.
Here, the speaker is complimenting the shoes of the person they are speaking to. They express their admiration by describing the shoes as 'very pretty'.