When it comes to hiking with kids, we w found the REI kids Mountainmaker pants to be the most comfortable and durable. They’re great no matter how hot it is and if it’s cold we just add a base layer. They hold up to any kind of adventure including sliding and scrambling over rocks. Paired with our favorite hiking shoes (Salomon Speedcross trail running shoes) and a backpack (Osprey Daylite pack) your kids will be ready for any adventure.