Sweet Starling Co. Tumbler Boot

This boot is specifically engineered for the Simple Modern Kids Trek. While the flexible silicone might stretch to fit other cups of similar base dimensions, we cannot guarantee a secure, non-slip fit on any other brand or model.

Yes, the boot is made from 100% food-grade silicone. It is non-toxic, durable, and designed to withstand the wear and tear of daily use at school or home.

Maintenance is simple. You can either hand wash it with warm soapy water or place it directly in the dishwasher. It is fully dishwasher safe and will not warp or degrade.

Because the silicone adds a bit of thickness and grip to the base, it may create a tighter fit in some standard vehicle cup holders. However, the flexible material usually compresses enough to accommodate most standard sizes.

No, the design is integrated into the silicone material itself rather than printed on top. It is built to last and will not peel, crack, or fade with regular washing or use.