In '89, Reebok introduces 'The Pump' technology to the market and sneakerheads everywhere went 🥜. Nike quickly responded that same year with the 'Air Pressure' and the 'Air Command Force' in '91.
Nike Air Pressure with Pump | Nike Air Pressure, released in… | Flickr
Nike Air Command Force - high top, air bubble, pump in the tongue, featured in White Men Can't Jump | Nike air, Nike, Sneakers
Nike Air Force 180 Pump Customs - Sneaker Freaker
Sneaker History - Pump Up and Air Out! — We Are Basket
All you need to know about the Reebok Pump - Sneakerjagers
Nike Air Pressure | Nice Kicks
Nike Air Pressure | Hypebeast
ShoeZeum Somebody Sent Me Vintage Original 1989 Nike Air Pressure Pumps To Sell On eBay - YouTube
1989 Nike Air Pressure Size 11 Original everything | eBay
Here's a Rare Look at the Original Nike Air Pressure | Complex