Columbia Techsun Vent children's sandals for everyday wear in summer Soft and comfortable Columbia Techsun Vent children's sandals art. BY4565-010 are the ideal choice for active little adventurers. With their innovative design and quality materials, these sandals offer the optimal combination of comfort, support and durability for children's feet during everyday adventures. Thanks to their ergonomic design and adjustable straps, the Columbia Techsun Vent sandals provide maximum comfort and