Number of children: S size: suitable for height around 110cm M size: suitable for a height of about 120cm L size: suitable for height of about 130cm XL size: suitable for a height of about 140cm Adult size: S size: suitable for height 165-168cm and weight 55-65kg M size: suitable for height 169-172cm and weight 65-75kg L size: suitable for height 173-176cm and weight 70-80kg XL size: suitable for height 177-180cm and weight 75-85kg 2XL size: suitable for height 181-184cm and weight 80-90kg 3XL size: suitable for height 185-188cm and weight 85-95kg Kart racing suit Product two-layer waterproof kart suit, moisture wicking Waterproof polyester/twill Lining net Neckline Two high-quality metal zippers Cuff thread belt Available in blue, red, black, white Waterproof/windproof/breathable/wear-resistant feature 1. 2 layers of kart suits. 2. Good quality 3. The fabric will be polyester 4. The special part is made of elastic fabric (shoulder, waistband, cuff). 5. Concealed and YKK zipper with two pullers, personalized design. 6. The cuffs are designed with ribbed fabric to help prevent the suit from moving. 7. Adjustable collar and belt can be customized to fit. 8. Comfortable and breathable. Please allow 1-2cm to be different due to manual measurement, thank you (all measurement units are cm, please note that 1cm = 0.3937inch)