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The PIONEER V1053060U-XL is a hi-vis yellow cooling safety shirt built for trade professionals working in high-heat environments. It uses 37.5 Technology, which permanently embeds natural volcanic minerals into the fabric to pull heat and moisture away from the body before sweat even forms. The result is a shirt that actively helps the body thermoregulate, cooling you when temperatures rise and retaining warmth when they drop. StarTech reflective tape is integrated throughout the design to maintain jobsite visibility in low-light conditions. Sold individually.
This shirt is suited for outdoor and industrial work environments where heat stress is a real concern, including construction sites, utility work, HVAC service calls, and road work. The hi-vis yellow colorway meets common high-visibility workwear requirements. The ribbed crew neck and moisture-managing fabric make it practical for full-day wear across seasons. It is sized X-Large and is intended for workers who need both thermal comfort and compliant safety visibility throughout their shift.
Designed as a general-purpose hi-vis cooling safety shirt for trade and industrial workers requiring high-visibility workwear with active thermal management.
No installation is required. Launder according to garment care instructions to preserve the 37.5 Technology mineral embedment and reflective tape integrity. Do not use bleach or fabric softeners, as these may degrade moisture-management performance over time. Inspect reflective tape periodically for wear, particularly if the shirt is used in abrasive environments.
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