See what Martin have to say about their travel size model:

"While the Little Martin is our smallest guitar, it is very big on tone, quality and versatility. The LX1 model features a solid spruce top and mahogany high-pressure laminate HPL back and sides. It’s ideal for travel, student practice or for just playing around the house or campfire. This model includes sustainable wood certified parts. 

See the spec sheet for more information.