When it's cold, the key word is layering. Kids should wear at least three layers: a base layer that is thin, form fitting, and will wick moisture away from the skin; a layer of insulation that is thicker than the base layer but not bulky (synthetic fleece sweats work well); and a windblock layer (which should be water-resistant but breathable). The uni or tight-fitting shorts and a tank top are the perfect first layer; a long-sleeve lycra or UnderArmor top and long tights or pants make a great second layer. Avoid cotton and down, both of which get heavy and lose their ability to insulate when they get wet. Also avoid loose-fitting sweats or basketball shorts, since they can get caught in the slides. Coxswains generally will need to dress more warmly than rowers, since they won't get warmed up exercising. Many rowers wear a stocking cap in all but the warmest weather. As rowers warm up, they can remove layers and place them in the boat by their feet. After practice, they can quickly layer up again. When the weather is hot, most rowers just wear unis or tight-fitting shorts and tank tops, but encourage your kid to bring along a tee or sweatshirt to cover up with when they cool down after practice. We strongly suggest that you or your kids label ALL their clothing-you'd be surprised what gets left at regattas and practices!