What's the difference between this and the...
What's the difference between this and the normal NeoAir pad?
They have the wrong image up. Go over to http://cascadedesigns.com/therm-a-rest/mattresses/trek-and-travel/neoair-trekker/product to see the NeoTrekker.
The biggest difference is the weight and durability. The original NeoAir uses 30 denier high tenacity ripstop nylon (top and bottom). The Trekker NeoAir uses a 75 denier polyester top shell and a 100 denier nylon bottom. The Trekker Neo Air also weighs 19oz while the Neo Air only weighs 14 oz (regular size for both).