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Mars Society Nylon Backpack – College & High School Students | Large Capacity, Astronaut Badge
EX-STOCK Commitment and Vendors Return Policy
🤝 EX-STOCK Canada Commitments
🛡️ Our Promise to Every Shopper
At EX-STOCK Canada, we are committed to providing a secure, affordable, and high-quality shopping experience. Our Canadian-based marketplace connects customers directly with trusted, cost-efficient suppliers, ensuring safe transactions, verified products, and competitive prices every single order.
- ✅ Proudly Canadian Marketplace
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- ✅ Verified Suppliers Only
- ✅ 90-Day Return Policy
- ✅ Free Shipping on Eligible Orders
- ✅ 24/7 Dedicated Customer Support
- ✅ EX-STOCK Rewards Loyalty Program
🇨🇦 Proudly Canadian Marketplace
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Learn more about our story on our EX-STOCK History page.
🔒 Fraud Protection & Secure Transactions
We have advanced AI-powered fraud detection and secure payment systems in place to protect you at every step.
- AI-Powered Fraud Detection - Continuously analyzes transactions to identify and block fraudulent activity before it happens.
- Verified Suppliers Only - Every supplier is thoroughly vetted to ensure all products are authentic, high quality, and safe.
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Every order is protected by Shopify Buyer Protection and our own advanced AI security systems, ensuring your identity, payment information, and personal data remain fully secure.
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🚚 Direct from the Source - No Middlemen
EX-STOCK Canada eliminates unnecessary intermediaries by directly connecting customers with manufacturers and trusted suppliers. This allows us to:
- ✅ Lower costs by shipping products straight from factories.
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Browse our full range across our Shop Categories.
📦 Wide Product Selection from Verified Suppliers
We have built long-term partnerships with suppliers and manufacturers across Canada, the U.S., Europe, Turkey, and China. Through these relationships, EX-STOCK Canada is able to:
- ✅ Provide a diverse range of products across fashion, electronics, home essentials, and more.
- ✅ Offer competitive pricing while maintaining strict quality standards.
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🛍️ Marketplace Partner Commitments
Some products are fulfilled directly through our verified warehouses, while others come from authorized retail partners and brand distributors. These partners are carefully approved to ensure every item meets our quality, safety, and authenticity standards.
- ✔ EX-STOCK Fulfilled Orders follow our standard policies and support process.
- ✔ Partner Fulfilled Orders may follow the policy of the retailer or supplier responsible for fulfillment.
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Interested in partnering with us? Visit our Sell With Us page or explore our Affiliates and Collaborators program.
🚚 Free Shipping & Guaranteed Delivery
- 📦 Free shipping on all items shipped from our EX-STOCK Canada warehouse.
- 📦 Orders with 2 or more items qualify for free shipping.
- 📦 Any order over $25 CAD receives complimentary shipping.
- 🔍 Every order comes with a tracking number so you can monitor your shipment.
- ⏱️ For delays exceeding one week from the expected delivery date, we offer a $5.00 CAD store credit as a gesture of goodwill.
- 📭 Orders not delivered within 45 days may qualify for a full refund after investigation.
🔄 90-Day Return Policy
We stand by the quality of our products and offer a customer-friendly return policy:
- ✅ 90-day return window for eligible products.
- ✅ 7-day reporting period for damages, missing items, or quality issues.
- ✅ If an item is damaged, incorrect, or defective, we provide a free return label and issue a full refund or replacement.
- ✅ Personal-reason returns are accepted. Return shipping costs are the customers responsibility.
- ✅ Certain categories may have exceptions. Check the product page for specific return policies.
Have questions? Visit our Frequently Asked Questions page or review our full Return Policy.
💰 30-Day Price Adjustment Policy
We understand that prices fluctuate, so we offer a 30-day price adjustment policy (holiday exceptions apply):
- If the price of an item drops within 30 days of your purchase, you are eligible for a refund of the price difference.
- The item must be the same size, color, and from the same supplier.
- Promotional or clearance items may not be eligible.
- The price adjustment only applies to the item price and does not include shipping fees or other charges.
EX-STOCK Canada reserves the right to final interpretation of this policy and may modify the terms at any time.
🎁 EX-STOCK Rewards Loyalty Program
We believe that loyal customers deserve rewards! Our Loyalty Program offers:
- ⭐ Exclusive discounts for repeat customers.
- ⭐ Points-based rewards system for every purchase.
- ⭐ Early access to new products and promotions.
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Why Shop with EX-STOCK Canada?
- ✅ 🇨🇦 Proudly Canadian - Built on Canadian values of trust, security, and customer-first service.
- ✅ 🔒 Fraud Protection - AI-driven security with verified suppliers.
- ✅ 💳 Secure Checkout.
- ✅ Guaranteed Quality - Only authentic, high-quality products from trusted suppliers.
- ✅ 📦 Free Shipping and Easy Returns - Affordable shopping without hidden fees.
- ✅ 📞 24/7 Customer Support - Local assistance for a seamless shopping experience.
📞 Contact EX-STOCK Support
EX-STOCK Marketplace
Ottawa, Ontario, Canada
📧 sales@ex-stock.com
📧 returns@ex-stock.com
📞 613-909-1313
Special Returns Conditions
- Large capacity (36–55L) — fits textbooks, a 15" laptop, gym clothes, and daily essentials with room to spare
- Durable nylon shell with polyester lining — lightweight yet tough enough for daily school and travel use
- Breathable back panel — reduces heat build-up during long commutes or walks between classes
- Zipper concealed interior pocket — keep valuables secure and organised
- Smooth YKK-style zipper closure — easy one-hand access to the main compartment
- Astronaut badge editions include enamel pin badges and a space-themed keychain charm for a personalised, collectible look
- Two sizes available — Large (L30 × W13 × H44 cm) and Small for a more compact carry
- 8 colour options — solid and astronaut badge editions in White, Green, Blue, and Black
- College and university students who need a reliable everyday carry bag
- High school students looking for a stylish, roomy backpack that stands out
- Commuters and travellers who want a versatile bag that transitions from campus to weekend trips
- Anyone who loves space, astronaut aesthetics, and collectible badge accessories
- Gift shoppers looking for a practical yet fun back-to-school present
- 90-day return policy — shop with confidence. Not satisfied? We'll make it right.
- Free shipping on orders over $25 to Canada and the USA
- Secure checkout through Shopify's encrypted payment infrastructure
- Responsive customer service — we're your primary point of contact for any order questions
- Vetted suppliers — products sourced from reliable manufacturers to meet quality expectations
Mars Society Nylon Backpack – Large Capacity School & Travel Bag
Whether you're heading to class, commuting across campus, or packing for a weekend trip, the Mars Society Nylon Backpack is built to keep up. Designed for college and high school students who want a bag that's functional, roomy, and effortlessly stylish, this backpack combines a clean two-tone silhouette with fun astronaut enamel pin badges and a space-themed keychain charm. Available in 8 colour options — including solid White, Green, Blue, and Black, plus four Astronaut badge editions — and in two sizes to suit every carry need.
Free shipping on orders over $25 to Canada & USA — delivered in 6–12 business days.
Key Features
Who This Is For
Product Details
| Material | Nylon shell, polyester lining |
| Closure | Zipper |
| Interior | Zipper concealed pocket |
| Capacity | 36–55L |
| Large size dimensions | L30 × W13 × H44 cm |
| Function | Breathable back panel |
| Colours | White, Green, Blue, Black (solid); White, Green, Blue, Black Astronaut (badge edition) |
| Sizes | Large, Small |
| Country of Origin | China |
Why EX-STOCK Canada?
Browse our full range of school supplies and student bags, explore new arrivals at EX-STOCK, and check out our 90-Day Return Collection for worry-free shopping.
You might also like the Ins Fashion Multi-pocket Travel Backpack, the High School Student Large Capacity Schoolbag, or the Printed Three-piece Fashion Backpack Set.
FAQ
What sizes does this backpack come in?
It comes in two sizes: Large (L30 × W13 × H44 cm, 36–55L capacity) and Small. The Large is ideal for students carrying textbooks and a laptop; the Small suits lighter daily loads.
Does the Astronaut edition include the badges and keychain?
Yes — the Astronaut badge editions come with enamel pin badges and a space-themed keychain charm included with the bag.
Will a 15" laptop fit in the Large size?
The Large size (H44 cm, 36–55L) is designed to accommodate a laptop along with textbooks and daily essentials. We recommend measuring your laptop sleeve before ordering to confirm fit.
What is the return policy?
EX-STOCK Canada offers a 90-day return policy. If you're not satisfied, contact us within 90 days of delivery for a refund or exchange. Items must be returned in original, unused condition. Visit our refund policy page or start a return request for full details.
How long does shipping take?
Free standard shipping to Canada and the USA takes approximately 6–12 business days. Expedited options (5–9 business days) are available at checkout. See our shipping policy for full details.