# Kids Starry Sky School Backpack – Spine Support, Waterproof Oxford Cloth (Grades 5–9) ## Kids Starry Sky School Backpack – Spine Support, Waterproof Oxford Cloth Give your child the perfect back-to-school companion. This starry sky school backpack is built for students in Grades 5 through 9, combining a fun cosmic print with serious ergonomic engineering. Designed with a curved spine-support shoulder strap system and lightweight Oxford cloth construction, it keeps heavy textbooks comfortable to carry all day — without the back strain. Available in Navy Blue, Sapphire Blue, Gray, and Black, in Small and Large sizes to suit different heights and grade levels. **Free shipping on orders over $25 to Canada & USA — delivered in 6–12 business days.** ### Key Features - 🌟 **Starry sky & space print** — rockets, planets, and constellations in a bold, eye-catching design - 🎒 **Spine-support curved shoulder straps** — ergonomic design reduces back and shoulder strain - 💧 **Waterproof Oxford cloth exterior** — keeps books and supplies dry in rain or snow - 🪶 **Ultra-lightweight construction** — reduces fatigue during long school days - 🔒 **Multiple compartments** — main compartment, front pockets, and side pockets for organized storage - ✨ **Wear-resistant & durable** — built to last through the full school year and beyond - 🧵 **Polyester lining** — smooth interior protects books and electronics ![Kids Starry Sky School Backpack Navy Blue Small – front and back view](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/ab5c6372-b603-4dcd-960e-86d494879bcd_trans.jpg?v=1785812464) ![Kids Starry Sky School Backpack Sapphire Blue Large – front view](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/ab567786-43c7-4a68-aeb3-a6482c9a71d6_trans.jpg?v=1785812464) ### Who This Is For - Boys in Grades 5–6 (Small size, recommended height 105–130 cm) - Junior high school students in Grades 7–9 (Large size, recommended height 130–160 cm) - Parents looking for a durable, ergonomic, and stylish school bag - Students who want a backpack that stands out with a cool space theme ### Product Details **Material** Oxford Cloth (exterior), Polyester (lining) **Shoulder Strap** Curved ergonomic spine-support system **Pattern** Starry sky / space / cartoon animation **Colours** Navy Blue, Sapphire Blue, Gray, Black **Sizes** Small (H41 × W29 × D15 cm) | Large (H41 × W29 × D15 cm) **Small – Recommended Height** 105–130 cm (Grades 5–6) **Large – Recommended Height** 130–160 cm (Junior High) **Weight** Small: 780 g | Large: 830 g **Functions** Breathable, Waterproof, Ultra-light, Wear-resistant, Burden-reducing, Spine protection **Applicable Gender** Boys / Male **Scenario** School, Education **Includes** 1 × Schoolbag ![Kids Starry Sky School Backpack Gray Small – side view](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/620c940c-6985-419b-9c5a-ad1a15c0b757_trans.jpg?v=1785812464) ![Kids Starry Sky School Backpack Gray Large – back view](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/6b98326c-ac00-4f52-bcf5-64d1b861b25e_trans.jpg?v=1785812464) ![Kids Starry Sky School Backpack Black Small](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/9158cc33-2d5d-472f-a056-683625c970aa_trans.jpg?v=1785812464) ![Kids Starry Sky School Backpack Black Large](https://cdn.shopify.com/s/files/1/0715/8595/6114/files/95471220-c75c-47fc-8c29-62bd7ac37d1d_trans.jpg?v=1785812464) ### Why Choose EX-STOCK? - ✅ **90-day return policy** — shop with complete confidence - 🚚 **Free shipping** on orders over $25 to Canada & USA (6–12 business days) - 🔐 **Secure checkout** through Shopify's encrypted payment infrastructure - 🤝 **Dedicated customer service** — EX-STOCK is your primary contact for all order and return questions - 🌎 **Ships across Canada and the USA** from vetted suppliers and manufacturers Looking for more great school bags? Browse our [New Arrivals collection](/collections/new-arrivals) or explore our [2026 Trending Picks](/collections/new-arrivals-trends-2026). You might also love the [Spine Support Student Bookbag](/products/spine-support-student-book-bag-backpack-for-school), the [Nylon Junior High School Backpack](/products/nylon-backpack-school-bag-junior-high-school-student-bags), or the [Large-Capacity Waterproof Schoolbag](/products/ins-backpack-locomotive-large-capacity-school-bags-large-cover-student-schoolbag). ### Frequently Asked Questions **Q: What size should I choose for my child?** A: The Small size is recommended for children 105–130 cm tall (typically Grades 5–6). The Large size suits students 130–160 cm tall (junior high school). When in doubt, size up for growing kids. **Q: Is this backpack waterproof?** A: Yes — the exterior is made from waterproof Oxford cloth, which repels light rain and splashes to keep your child's books and supplies dry. **Q: How does the spine-support system work?** A: The curved ergonomic shoulder straps are designed to distribute weight evenly across the back and shoulders, reducing strain and promoting better posture during long school days. **Q: How long does shipping take to Canada and the USA?** A: Standard free shipping takes 6–12 business days. Expedited shipping is available and typically arrives in 5–9 business days. **Q: What is the return policy?** A: EX-STOCK Canada offers a 90-day return policy. If you're not satisfied, contact us within 90 days of delivery for a full refund or exchange. Items must be returned in original, unused condition. Visit our [return portal](/apps/returns) to start a return request. ## Details - **Price:** 39.99 CAD - **Vendor:** EX-STOCK - **Type:** Kids School Backpack ## Variants | Variant | Price | Available | |---------|-------|-----------| | Navy Blue Small | 39.99 CAD | In stock | | Sapphire Blue Large Size | 39.99 CAD | In stock | | Gray Small Size | 39.99 CAD | In stock | | Gray Large Size | 39.99 CAD | In stock | | Black Small Size | 39.99 CAD | In stock | | Black Large Size | 39.99 CAD | In stock | ## Images - 3adc3dc4d4d56e471af278b77e0f87da - 5214bf2462393d17274663eb4455aa6 - ef77ba416e8bb18d6556cda7f27fde7d - 421de36d12d726276debccb2b527e716 - 750d04d65263ed1968e00716785f0510 - 824f6e5b24e4a3d80671b585824d2b7c - e93b874e8fa9b502a6dd1812b54db619 - 9fcf7527702e36a1356cf7fb7fd9454d - 308ef61ca5e2938e84df65003d323b2b - 7405ef3fd15e00375fea7d2df3354d86 ## Additional Information - **Care guide:** Wipe exterior with a damp cloth. Do not machine wash. Air dry only. Avoid prolonged exposure to direct sunlight. Keep zippers clean and dry. - **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. --- > Source: [EX-STOCK Canada](https://www.ex-stock.com/products/primary-school-student-starry-sky-leisure-schoolbag-junior-high-school-student-backpack) > Updated: 2026-08-04