{"product_id":"use-it-lose-it","title":"USE IT \/ LOSE IT","description":"\u003cp\u003eYour muscles begin to change sooner than most people expect - and more completely than they realize. The earliest signs appear within days: motor unit activation drops, protein synthesis declines, neuromuscular efficiency erodes. The structural changes depicted in this graphic reflect something longer - weeks to months of sustained disuse, the cumulative cost of insufficient mechanical stimulus. The body does not maintain what it doesn't use. Skeletal muscle is metabolically expensive, and the system is ruthlessly efficient. The same mechanism runs in full reverse: progressive load drives hypertrophy, motor unit recruitment, and structural adaptation. There is no neutral state. Load or lose.\u003c\/p\u003e\n\u003cp\u003eThe graphic depicts a skeletal muscle belly in longitudinal section - split into two halves. The upper shows dense, organized, well-vascularized muscle: the architecture of a system under load. The lower shows the atrophied state: the structural cost of disuse. USE IT above. LOSE IT below. Not a slogan. A biological choice.\u003c\/p\u003e\n\u003cdiv class=\"empiric-size-chart\" style=\"margin: 32px 0; border: 1px solid #E5E4DF; padding: 20px;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 12px 0 16px; cursor: pointer; font-size: 11px; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; color: #0d0d0d; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003e\u003cspan\u003eSize Guide\u003c\/span\u003e\u003cspan style=\"font-size: 16px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n\u003cp style=\"font-size: 10px; color: #999; margin: 0 0 12px; letter-spacing: 0.04em; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif; text-transform: uppercase;\"\u003eLane Seven LS16005GD — measurements in inches, garment flat\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif; table-layout: fixed;\"\u003e\n\u003cthead\u003e\u003ctr style=\"border-bottom: 2px solid #1a1a1a;\"\u003e\n\u003cth style=\"padding: 8px 0; text-align: left; font-size: 9px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #111; width: 22%;\"\u003e\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003eXS\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003eS\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003eM\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003eL\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003eXL\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003e2XL\u003c\/th\u003e\n\u003cth style=\"padding: 8px 4px; text-align: center; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #111;\"\u003e3XL\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #eee;\"\u003e\n\u003ctd style=\"padding: 10px 0; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #333;\"\u003eChest\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e18.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e20.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e22.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e24.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e26.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e28.5\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e30.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 0; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #333;\"\u003eLength\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e25\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e26\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e27\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e28\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e29\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e30\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 4px; text-align: center; font-size: 12px; color: #333;\"\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 10px; color: #999; margin: 12px 0 0; line-height: 1.6; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;\"\u003eGarment measurements. Chest is measured flat across one side. Truly oversized, boxy silhouette with a dropped shoulder. Refer to the measurements above for your size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 32px 0 0; padding-top: 24px; border-top: 1px solid #e0e0e0;\"\u003e\n\u003cp style=\"font-size: 0.72em; font-weight: bold; letter-spacing: 0.16em; text-transform: uppercase; color: #111111; margin: 0 0 8px 0;\"\u003eBuilt to Last.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.88em; color: #444444; line-height: 1.6; margin: 0 0 16px 0;\"\u003eHeavy cotton, tight stitching - built to outlast every lightweight tee you've ever owned.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(3,1fr); gap: 6px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/7553\/7120\/files\/1_20260520124821.jpg?v=1779270509\" alt=\"Fabric texture\" style=\"width: 100%; height: 180px; object-fit: cover; border-radius: 3px; display: block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/7553\/7120\/files\/2_20260520124833.jpg?v=1779270520\" alt=\"Fabric close-up\" style=\"width: 100%; height: 180px; object-fit: cover; border-radius: 3px; display: block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/7553\/7120\/files\/3_20260520124844.jpg?v=1779270531\" alt=\"Garment detail\" style=\"width: 100%; height: 180px; object-fit: cover; border-radius: 3px; display: block;\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.78em; color: #aaaaaa; line-height: 1.7; margin: 20px 0 0; padding-top: 16px; border-top: 1px solid #eeeeee; font-style: italic;\"\u003eIndividually garment-dyed. Subtle variation in shade and texture between pieces is part of the character - not a flaw.\u003c\/p\u003e\n\u003c!-- EMPIRIC_FEATURES_END --\u003e","brand":"EMPIRIC","offers":[{"title":"Coal \/ XS","offer_id":53480437612768,"sku":"57000947130869345224","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ XS","offer_id":52971182325984,"sku":"21287700819387483423","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ S","offer_id":52971182358752,"sku":"20538357358109290755","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Coal \/ M","offer_id":52148300841184,"sku":"21617020343013572301","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ M","offer_id":52971182391520,"sku":"76699911093665817456","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Coal \/ L","offer_id":52148300873952,"sku":"27743530536448899785","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ L","offer_id":52971182424288,"sku":"13289507351700430260","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Coal \/ XL","offer_id":52148300906720,"sku":"15950421386311942765","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ XL","offer_id":52971182457056,"sku":"26553119447171613163","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Coal \/ 2XL","offer_id":52148300939488,"sku":"10594823697458104069","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ 2XL","offer_id":52971182489824,"sku":"34021225920296173168","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Coal \/ 3XL","offer_id":53301103231200,"sku":"13947807005041243374","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Graphite \/ 3XL","offer_id":52971182522592,"sku":"28188630740446479904","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/7553\/7120\/files\/FRONT_USE_IT_LOSE_IT.png?v=1778929705","url":"https:\/\/www.empiricwear.com\/products\/use-it-lose-it","provider":"EMPIRIC","version":"1.0","type":"link"}