I really like the Adventure Medical brand. You can get them at REI.com or MEC.ca. I like the Ultralight line the best, they are very compact (ideal for both hiking and fitting in a small trailer) but are packed with quite a bit of stuff, and range from small single person day hike kits all the way up to professional kits. I have the .9 size kit, and I have never needed anything more for day hikes, camping for a week, or even Disney World. I tend to keep extra BandAid's and Moleskin to restock though, they tend to go the quickest especially with kids.