Amazon continues to add little conveniences to its Alexa virtual assistant, and now you can place orders for select items through your Echo or other Alexa-enabled product. If you're an Amazon Prime member, you can place an order on items like cloths and shoes using only your voice.

Amazon Prime members can now ask Alexa to buy things for them

From TechCrunch:

Users with Amazon Echo, Echo Dot, Tap or Fire TV can shop for new products by saying, say, "Alexa, order a Frisbee," at which point the program will suggest a relevant Prime product and price. Likely some manner of flying disc.

The products that you order must be eligible for Prime delivery. After you've made your selection, Alexa will ask you to confirm your order, after which, of course, you'll be able to track it until it arrives on your doorstep.