# Kids Insulated Stainless Steel Straw Tumbler – 360ml Leak-Proof Cup with Cute Designs | 6 Styles

## Kids Insulated Stainless Steel Straw Tumbler – 360ml | 6 Cute Designs

Keep your little one's drinks perfectly hot or cold all day long with the EX-STOCK Kids Insulated Straw Tumbler. Built from food-grade 304 stainless steel inside and out, this adorable 12oz/360ml cup features a leak-proof flip lid, a silicone-tipped straw, and playful designs your child will love taking to school, daycare, or on any adventure.

![Kids Insulated Stainless Steel Straw Tumbler – Whale Tale design, 360ml](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/1c66eb04-9048-4a43-b8f1-7b0a4db2664e_trans.jpg?v=1787744554)

### Key Features

-   🥤 **Double-wall insulation** — keeps drinks hot or cold for 6–12 hours
-   🦺 **100% food-grade 304 stainless steel** — safe inside and outside, no harmful coatings
-   🔒 **Leak-proof flip lid** — no spills in backpacks or car seats
-   🌱 **Food-grade silicone straw** — soft, gentle on little teeth
-   🎨 **6 adorable designs** — Whale Tale, Cute Bear, Strawberry Milk Cover, Purple Berry Cone, Lime Dots, Rainbow Style
-   🏫 **Perfect 360ml/12oz size** — right-sized for kids aged 3 and up
-   🛡️ **Anti-slip outer coating** — stays put on desks and tables
-   🧽 **Easy to clean** — removable straw and lid components

![Kids tumbler construction diagram – 304 stainless steel inner and outer liner with food-grade PP lid](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/5d2e8551-83f6-44e7-9b81-4eca517ea025_trans.jpg?v=1787744554)

### Who This Is For

-   **Parents** looking for a safe, non-toxic, BPA-free option that actually keeps drinks at temperature
-   **School-age kids (3–10)** who need a spill-proof bottle for their backpack or desk
-   **Gift givers** — these make wonderful birthday, back-to-school, or holiday gifts kids actually get excited about
-   **Active families** — equally great for sports days, picnics, and road trips

![Kids insulated straw tumbler – Cute Bear design](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/f6a6550b-d60d-4b3c-89b5-59c6b4825768_trans.jpg?v=1787744554)

### Product Details

Specification

Details

Capacity

360ml / 12oz

Shell Material

304 Food-Grade Stainless Steel

Inner Liner

304 Food-Grade Stainless Steel

Lid Material

Food-Grade PP Plastic

Straw Material

Food-Grade Silicone

Insulation Performance

6–12 hours hot or cold

Weight

282g

Style / Function

With Straw, Portable, Leak-Proof

Available Designs

Whale Tale, Cute Bear, Strawberry Milk Cover, Purple Berry Cone, Lime Dots, Rainbow Style

Package Contents

1 × Insulated Straw Tumbler

![Kids insulated tumbler – Strawberry Milk Cover design, 360ml](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/0929b9c8-2138-4126-ab0b-0b682546c6b1_trans.jpg?v=1787744554) ![Kids straw tumbler – Purple Berry Cone design](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/3fdbe236-a630-414d-b97b-460b579ea6f5_trans.jpg?v=1787744554)

### Why EX-STOCK?

-   ✅ **90-day return policy** — not happy? We've got you covered, no stress
-   🚚 **Free shipping on orders over $25** to Canada & USA — delivered in 6–12 business days
-   🏆 **Quality-tested products** — every item is sourced and reviewed before listing
-   💬

## Details

- **Price:** 44.4 CAD
- **Vendor:** EX-STOCK
- **Type:** Kids Water Bottle

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Cetacean Story / 360ml | 44.40 CAD | In stock |
| Cute Bear / 360ml | 44.40 CAD | In stock |
| Strawberry Milk Cover / 360ml | 44.40 CAD | In stock |
| Purple Berry Cone / 360ml | 44.40 CAD | In stock |
| Lime Dots / 360ml | 44.40 CAD | In stock |
| Rainbow Style / 360ml | 44.40 CAD | In stock |

## Images

- Kids Insulated Stainless Steel Straw Tumbler – 360ml Leak-Proof Cup with Cute Designs | 6 Styles 3
- Kids Insulated Stainless Steel Straw Tumbler – 360ml Leak-Proof Cup with Cute Designs | 6 Styles
- Kids Insulated Stainless Steel Straw Tumbler – 360ml Leak-Proof Cup with Cute Designs | 6 Styles 2
- Kids Insulated Stainless Steel Straw Tumbler – 360ml Leak-Proof Cup with Cute Designs | 6 Styles 4
- A pink and white striped tumbler cup with a cute bear face graphic, resting on a pink stand. It has a light blue straw and is set against a colorful background with pink and yellow surfaces, blue arches, and a matching cushion.
- A brown cardboard shipping box with a small insulated mug and its own box shown on top, plus red dimension lines indicating 160mm height and 87mm width. Product specifications text is printed below on a white background.
- A retro-style 12 oz milk cap tumbler with a blue flower design, red lid, pink stand, and blue straw, set against a pink and yellow background with a blue arch prop.
- A novelty purple berry ice cream cone cup-shaped drink holder with a yellow straw, set on a yellow surface against a pink background with blue arches.
- A 12oz plastic cup with a yellow straw, decorated with colorful lime-dot patterns on a white body, resting on a pink arch stand. The background is a bright, playful studio setup with a pink and yellow surface, a blue arch, and a text label reading 'Lime Dot Dot 12oz / 360ml'.
- A colorful 12 oz plastic tumbler with a pink stand, featuring rainbow-striped patterns in pink, yellow, blue, and white. It has a light blue rim and a pink straw, set against a bright pink and yellow background with a blue arch prop.

## Additional Information

- **Care guide:** Hand wash with warm soapy water. Remove straw and lid before cleaning. Do not put in dishwasher or microwave. Dry thoroughly before storing. Avoid using abrasive scrubbers on the outer print.
- **Delivery :** Free shipping to Canada and USA in 6–12 business days. Expedited 5–9 business days.
- **return refund policy:** EX-STOCK Canada offers a 90-day return policy on this product. If you are not satisfied with your purchase, contact us within 90 days of delivery for a full refund or exchange. Items must be returned in original, unused condition. Return shipping costs may apply.

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> Source: [EX-STOCK Canada](https://www.ex-stock.com/products/leak-proof-portable-water-bottle-specially-designed-for-school)
> Updated: 2026-08-29