You can absolutely wear your Invisalign while showering, and many people find this to be the most convenient time to clean their trays. Since you are not eating or drinking during a shower, keeping the trays in helps you maximize your daily wear time. If you want to multitask, you can take them out for a moment to gently brush them with a soft toothbrush and clear, mild soap under the lukewarm shower stream. Just be careful to avoid using very hot water, as extreme temperatures can warp the medical-grade plastic and ruin the precise fit. As long as the water is a comfortable temperature for your skin, it is safe for your aligners, making the shower a perfect place for a quick hygiene refresh.