- Size: 25 • Rubber shoes for children, ideal for indoor and outdoor use, comfortable and lightweight. • Unisex flip-flops with a durable and non-slip rubber sole. • Perfect for pool, beach, shower, bath, home, garden, and sea. • Sandals with flat heels, practical, comfortable, and aesthetically pleasing. • Instructions for measuring foot length: Place the bare foot on a sheet of paper, with the heel against the wall. Draw a line in front of the longest toe and measure the distance in cm between the edge of the sheet and the line. If you are between two sizes, choose the larger size.