Frequently Asked Questions
Everything you need to know about shopping with Happy Mammoth.
How long does shipping typically take?
Standard shipping usually takes 3-7 business days within the continental US. International orders may take 10-21 business days depending on the destination and customs processing.
What is your return policy?
We offer a 30-day return policy for all unworn and unwashed items with original tags attached. Simply visit our Returns Portal to start your process.
How do I know which size to order?
Each product page features a detailed 'Size Guide' button. We recommend measuring yourself and comparing it to our chart, as our fits range from slim to oversized depending on the collection.
Are your materials sustainably sourced?
Yes, Happy Mammoth is committed to ethical fashion. We use organic cotton, recycled polyester, and non-toxic dyes in 80% of our current seasonal catalog.
What payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express), PayPal, Apple Pay, Google Pay, and 'Buy Now, Pay Later' options via Klarna and Afterpay.
Can I change or cancel my order after it has been placed?
Because we process orders quickly, you have a 60-minute window after placement to request a change or cancellation by contacting our support team.