How leakproof is this? If I lay it on its side, will it leak? What if I throw it in a bag (e.g. backpack, messenger bag, etc.)?

I have two and I put coffee in one and water in the other. I then put them Inside my tote bag (no pockets). They do not leak!!!! You can lay them down, turn them upside down or shake them and they will not leak. Disclaimer: You must keep the top closed and the top must be screwed on correctly and tightly. Keeps liquids hot or cold for hours!!! Best travel cup ever!!!!!!

Is the interior stainless or plastic?

The interior is a stainless metal.

Does anyone know what the difference is between this model with "Easy Clean Lid" and the previous model with "Open-Access Lid"? Which is better?

Easy clean lid is better but 1st seals used by mfg. squeaks when you go to drink. Don't know if mfg. changed to seals which don't squeak. Does anyone know if currently shipping Easy Clean Lid still squeaks when actuated to drink? Are Easy Clean Lids interchangeable between earlier earlier 20 oz stainless steel travel mugs?

Just bought these and soaked tops in warm water, coffee still tastes like plastic/rubber will this go away?

We hand wash ours with dish soap and water, rinse thoroughly and then boil some hot water to blow out the top. This gets the crud out of the air holes under the lock. Now if I just had a replacement seal for around the lid, I'd be grand. I've had mine for about ten years...they definitely start to taste like whatever you put it in every day. With a daily rinse, it helps a ton. The plastic taste should go away rather quickly.

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🔥 Sip Boldly, Spill Never! 🔒

BPA FREE SAFE - Sip smart with health-conscious materials
LIGHTWEIGHT PORTABLE - Carry confidence—249g of pure convenience
AUTOSEAL SPILL PROOF LID - Zero spills, zero stress—seamless one-handed use
16 OZ STAINLESS STEEL BUILD - Sleek, durable, and perfectly sized for your daily grind
THERMALOCK VACUUM INSULATION - Lock in your perfect sip—hot or cold, all day long

The Contigo West Loop Travel Mug features advanced Thermalock vacuum insulation that keeps beverages hot for up to 5 hours and cold for up to 12 hours. Its innovative Autoseal lid ensures a leak- and spill-proof experience, perfect for busy professionals on the move. Crafted from durable stainless steel and BPA-free materials, this 16oz mug combines style, safety, and convenience in a lightweight, portable design.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

¥7363

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Brand	Contigo
Model Number	WLO100J01ZCN
Color	Stainless Steel/Black
Product Dimensions	8.26 x 19.69 x 8.89 cm; 249.48 g
Capacity	16 Fluid Ounces
Material	Stainless Steel
Special Features	portable
Item Weight	249 g

ContigoWest Loop Stainless Steel Vacuum-Insulated Travel Mug with Spill-Proof Lid, Keeps Drinks Hot up to 5 Hours and Cold up to 12 Hours, 16oz Steel/Black

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