{"product_id":"helen-cox-under-jacket-shirt","title":"Helen Cox Under Jacket Shirt","description":"\u003ch2\u003eThe Layer That Works as Hard as You Do.\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eHelen Cox Under Jacket Shirt\u003c\/strong\u003e is the essential base layer for athletes who train and compete in all conditions. Designed to be worn under a cage jacket, warm-up jacket, or on its own, this performance shirt delivers next-to-skin comfort with the technical features serious athletes demand from warm-ups to post-game cool-downs.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim Athletic Fit\u003c\/strong\u003e — Streamlined cut sits close to the body for a clean, layered look under any jacket without bunching or bulk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture-Wicking Fabric\u003c\/strong\u003e — Pulls sweat away from the skin to keep you dry and comfortable through every inning and drill\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Way Stretch Construction\u003c\/strong\u003e — Unrestricted movement in every direction so your warm-up never slows you down\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlatlock Seams\u003c\/strong\u003e — Chafe-free construction that stays comfortable under outerwear during long game days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Breathable\u003c\/strong\u003e — Regulates body temperature without overheating when layered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Hem\u003c\/strong\u003e — Stays tucked and in place during active movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Branding Available\u003c\/strong\u003e — Add team name, number, and colors to complete the uniform look\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe perfect foundation for your game-day layering system. Wear it under. Feel the difference.\u003c\/p\u003e\n\u003ch3\u003eSize Chart — US Women's\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#111;color:#fff;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eXS\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eS\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eM\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eL\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eXL\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003e2XL\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003e3XL\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBust (in)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e31–32\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e33–34\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e35–36\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e37–39\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e40–42\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e43–45\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e46–48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWaist (in)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e23–24\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e25–26\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e27–28\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e29–31\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e32–34\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e35–37\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e38–40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBody Length (in)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e25\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e26\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e27\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e28\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e29\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e30\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:12px;color:#666;\"\u003eMeasurements are in inches. For the best fit, measure your body and compare to the chart. Slim fit — size up if between sizes.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/fabric-guide\"\u003e\u003cstrong\u003e📋 View Our Fabric Guide →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Try N Keep Up Sports","offers":[{"title":"Default Title","offer_id":54316235489493,"sku":"TNKU-SHRT-UJ-HCX-001","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/2163\/0677\/files\/Screenshot2026-07-22at7.56.49AM.png?v=1784722128","url":"https:\/\/trynkeepup.myshopify.com\/products\/helen-cox-under-jacket-shirt","provider":"Try N Keep Up Sports","version":"1.0","type":"link"}