Outgrew it in one season. Worn only a few times, so it's in good condition. Thank you. [BREATH THERMO MIZUNO THERMAL PLUS] A heat-generating material that absorbs moisture from the body and uses the heat of adsorption to raise the temperature. ■Product Information ・Product Name Junior Breath Thermo / High Neck / Long Sleeve / Junior (12JA6P55) "Baseball Underwear Mizuno" ・Manufacturer Mizuno ・Size 140 ・Color (09) Pastel Navy ・Material 92% Polyester, 8% Specified Fiber (Breath Thermo)