The Intruder 5/4/3mm Boys Fullsuit is made of 5/4/3mm neoprene with fine mesh front and back and a backzip entry. 5/4/3mm Junior Intruder Wetsuit Red detailing Logo design on chest and wrist Superflex ZG300 fabric on arms & underarms Soft lycra lined neck Seam sealed construction Strong knee pads | Temperature Guide : 12°C - 15°C | We say: These suits are part of our trade in programme. If your child grows out of it you can trade it in the next year (you will get 30% of the price you paid for the original suit to put towards your new suit). SIZE CHART Size Height (In) Weight (LB) Chest (In) Waist (IN) 8 4'4.5"-4'7.5" 60-75 26"-28" 22"-24" 10 4'7"-4'10" 75-90 28"-30" 24"-26" 12 4'10"-5'1" 90-105 29"-31" 25"-27" 14 5'1"-5"4" 105-120 31"-33" 26"-28" 16 5'4"-5'7" 120-135 33"-35" 27"-29"