REI Cascade Rain Pants
Here's what other sites are saying:
The PVC-free REI Cascade pants will help keep your little one dry and comfortable during his puddle-jumping adventures. Sturdy, lightweight Elements(R) nylon sports a Durable Water Repellent coating; seams are sealed to block out rain and wind. Elastic waist with drawcord adjusts easily for a secure fit. Adjustable rip-and-stick cuff tabs help seal out the rain. Reflective accents enhance visibility in low light.