The sponge is based on the highest grade DT sponge made by National Rubber Co., Ltd., the largest domestic manufacturer, which is also used by both famous overseas and domestic brands. The outer jersey for the side gussets, crotch gussets, buttocks, and back of the knees uses a super stretch jersey (relaxation jersey) developed jointly with a famous domestic textile company, offering excellent texture and elasticity. The suit's brushed lining uses a top-grade brushed material, renowned in Japan for its quick-drying, mobility, heat retention, and cost-effectiveness. The semi-dry suit comes standard with an inner neck for more comfortable surfing. (Notes) The stretch long zipper is very delicate. When putting on or taking off the suit, please open and close it gently, taking care not to put excessive strain on the zipper and ensuring the slider does not get caught in the material. We meticulously craft our products to ensure customer satisfaction. #surfing #wetsuit #semidrysuit #fullsuit #longjohn #backzip #nonzip #chestzip #longchestzip #airflameboost Measurement Details 1 Height 2 Weight 3 Neck Circumference 4 Shoulder Width 5 Upper Chest Circumference 6 Waist Circumference 7 Hip Circumference 8 Back Length 9 Sleeve Length 10 Bicep Circumference 11 Elbow Circumference 12 Forearm Circumference 13 Wrist Circumference 14 Inseam 15 Below Knee Circumference 16 Calf Circumference 17 Ankle Circumference (Notes) 1. Please note that we cannot accept cancellations, returns, or exchanges due to customer convenience. 2. If you have any questions, please ask before purchasing. We are closed on weekends and holidays, so replies to your questions may be delayed. We appreciate your understanding. (Re-Important Notes) We kindly ask that overly meticulous or sensitive customers refrain from purchasing. We may refuse to sell the product to prevent trouble based on the provided measurements. We appreciate your understanding in such cases. Delivery will take approximately 21 days, excluding weekends and holidays, from the day after your purchase. Please ensure accurate measurements are taken while wearing swimwear or underwear. We are not responsible if the suit does not fit after arrival. Please purchase at your own risk.