Love comfortable cotton essentials? Our Cotton Mystery Box is the perfect way to refresh your wardrobe while enjoying incredible value.
Choose 1, 2, or 3 items, select your size, and we'll hand-pick a surprise selection of our cotton favorites from across our collections.
Every box includes soft, breathable cotton styles that are perfect for everyday wear. Your box may include best sellers, seasonal favorites, or hidden gems.
If you purchase multiple boxes, we’ll do our best to avoid duplicate items within your order.
Shipping Time & Delivery Fees
• All orders take 5–7 business days to process before shipping
• We do not ship to P.O. boxes
Standard Shipping
Express Shipping
• $49.99 USD flat fee
• Delivery time: 4–8 business days (after processing)
Please note: All Express Shipping orders—free or paid—may be subject to local taxes, which are the buyer’s responsibility
⚠️ Sunglasses Shipping Notice: Due to customs regulations, sunglasses can only ship via Standard Shipping (typically 8–10 business days after processing). Express shipping is not available.⚠️
For full details, read our full Shipping & Delivery Policy
Return Guarantee
• Returns accepted within 30 days of delivery
• Email support@elevenoasis.com to initiate your return
• Items must be unworn, unwashed, with original tags attached
• Orders cannot be cancelled once shipped
Custom Order Policy
For full details, see our Shipping Policy and Return Policy.
We accept major credit cards, PayPal, and other standard payment methods available at checkout.
Trackable Logistics
Need to check the delivery status of your order? We will send a Shipping Confirmation email to you as soon as your item ships. You can also check our Track My Order page. If you encounter any issues or have any questions regarding your purchase, please do not hesitate to contact us immediately by emailing support@elevenoasis.com.
Helpful & Friendly Customer Service
Need to talk to someone? We have a team of customer service professionals ready to answer your questions about sizing, order submission and deliveries. Contact us by emailing support@elevenoasis.com.
Privacy Protection
Eleven Oasis will never share your personal information with unaffiliated third parties.
For more information on privacy, please click here: Privacy Policy
| SIZE | SHOULDER | CHEST | LENGTH | SLEEVE |
|---|---|---|---|---|
| S | 19.7 | 43.7 | 29.1 | 8.7 |
| M | 20.9 | 46.9 | 29.9 | 9.1 |
| L | 21.7 | 50.0 | 30.7 | 9.5 |
| XL | 22.8 | 53.2 | 31.5 | 9.8 |
| 2XL | 23.6 | 56.3 | 32.3 | 10.2 |
| 3XL | 24.1 | 59.5 | 33.1 | 10.6 |
| 4XL | 25.6 | 62.6 | 33.9 | 11.0 |
| 5XL | 26.8 | 65.8 | 34.7 | 11.4 |
| SIZE | S | M | L | XL | 2XL | 3XL | 4XL | 5XL |
|---|---|---|---|---|---|---|---|---|
| US | 38 | 40 | 42 | 46 | 48 | 50 | 52 | 54 |
| EU | 50 | 52 | 54 | 58 | 60 | 62 | 64 | 66 |
| UK | 38 | 40 | 42 | 46 | 48 | 50 | 52 | 54 |
Each product page includes a detailed size guide to help you find the best fit. You can click “Size Guide” near the size selector to view measurements, fit information, and model references.
For selected products, we also offer “What’s My Size?”, a tool that suggests a recommended size based on your height, weight, and age.
We offer a 30-Day First-Time Fit Guarantee.
If your first order doesn’t fit as expected, contact our support team within 30 days of delivery and we’ll help you find the right solution.
Items must meet our standard return eligibility requirements.
Order processing takes 5-7 business days. This is the time needed to prepare your order before shipping. Shipping times then vary by region:
Standard Shipping:
Express Shipping:
Total Delivery Time = Processing Time (5-7 business days) + Shipping Time (varies by region)
For example, if you're based in the USA with standard shipping:
Please note that peak seasons and sales events may also affect processing times.
For complete details, see our Shipping Policy and Return Policy.
Please visit our Track My Order page, or contact our customer service team at support@elevenoasis.com. We aim to respond within 48 business hours but are usually much faster. Please check your spam/junk folders for our replies.
Click here to access all our Frequently Asked Questions.
