{"product_id":"certainty-has-limits-t-shirt-measure-carefully-graphic-tee-for-scientists-engineers","title":"Certainty Has Limits T-Shirt — Measure Carefully Graphic Tee for Scientists \u0026 Engineers","description":"\u003ctable id=\"size-guide\" style=\"min-width:360px;\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth style=\"padding:10px;\"\u003e\u003c\/th\u003e\n                    \u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003eXS\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003eS\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003eM\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003eL\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003eXL\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003e2XL\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003e3XL\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003e4XL\u003c\/th\u003e\n\u003cth style=\"color:#000000;font-weight:500;text-align:left;font-size:15px;padding:10px;\"\u003e5XL\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \n                    \u003ctr\u003e\n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            Width, in\n                        \u003c\/td\u003e\n                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            16.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            18.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            20.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            22.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            24.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            26.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            28.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            30.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            32.00 \n                        \u003c\/td\u003e\n                                        \n                    \u003c\/tr\u003e\n               \n                    \u003ctr\u003e\n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            Length, in\n                        \u003c\/td\u003e\n                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            27.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            28.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            29.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            30.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            31.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            32.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            33.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            34.00 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            35.00 \n                        \u003c\/td\u003e\n                                        \n                    \u003c\/tr\u003e\n               \n                    \u003ctr\u003e\n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            Sleeve length, in\n                        \u003c\/td\u003e\n                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            7.99 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            8.23 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            8.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            8.74 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            9.02 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            9.25 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            9.49 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            9.72 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            9.96 \n                        \u003c\/td\u003e\n                                        \n                    \u003c\/tr\u003e\n               \n                    \u003ctr\u003e\n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            Size tolerance, in\n                        \u003c\/td\u003e\n                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                        \u003ctd style=\"padding:10px;color:#525252;font-size:15px;border-top:1px solid #ededed;word-break: break-word;\"\u003e\n                            1.50 \n                        \u003c\/td\u003e\n                                        \n                    \u003c\/tr\u003e\n               \n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n        A lightweight, thoughtfully made tee for people who love precision and a good laugh. The soft ring-spun cotton feels easy against skin while the clean crew neckline and classic fit keep the silhouette simple and wearable every day. The front artwork — a stylized waveform and instrument with the phrase “Certainty Has Limits \/ Measure Carefully” — nods to engineers, lab folks, audio technicians, and curious minds who appreciate data, measurement, and a touch of dry humor. Wear it to labs, lectures, fieldwork, or casual meet-ups; it layers well under a jacket or stands alone with jeans. Durable construction (tubular knit, taped shoulders, ribbed collar) and tear-away label make it comfortable through long shifts and repeated washes. Ethically sourced cotton, OEKO-TEX® certification, and reliable printing methods (DTG for the main print, DTF for sleeves\/neck labels when used) mean the shirt looks sharp while meeting safety and quality standards.\u003cbr\u003e\u003cbr\u003eProduct features\u003cbr\u003e- 100% ring-spun cotton (lightweight 153 g\/m²) for a soft, breathable feel\u003cbr\u003e- Tubular knit (no side seams) for a smooth, waste-reducing fit\u003cbr\u003e- Ribbed collar and taped shoulders to preserve shape and resist stretching\u003cbr\u003e- Durable, high-quality prints: DTG main print; DTF used for sleeves and inner neck labels\u003cbr\u003e- OEKO-TEX® certified and ethically sourced cotton with EU 2-year warranty\u003cbr\u003e\u003cbr\u003eCare instructions\u003cbr\u003e- Do not dryclean\u003cbr\u003e- Do not bleach\u003cbr\u003e- Tumble dry: low heat\u003cbr\u003e- Iron, steam or dry: low heat\u003cbr\u003e- Machine wash: cold (max 30C or 90F), with similar colors 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