HOW TO SELL IT
Resale
The act of selling an item a second time
Reselling is usually associated with secondhand, but this also includes selling, items that were purchased at retail, from a store that's going out of business
(Ex: Close-out) and discount stores (Ex: Dollar Tree or Family Dollar)

Retail
The Sale of Goods to the Ultimate Consumer
Unlike selling wholesale, retail involves being the end seller. Items are usually in small quantities as opposed to large lots or bundles (Ex: most consumers buy 1 or a couple of an item as opposed to larger quantities like when buying wholesale)
White Label
Add Your Company's Label to an Existing Product
In comparison to "private label" white label is the act of adding your branding or label to merchandise that is already produced
Private Label
Add Your Own Label to a Product You Designed
A private label is label of a product or the product itself, sold under the name of a wholesaler or retailer by special arrangement with the manufacturer or producer. Unlike a white label business, a private label is more involved when it comes to travel and factor visits
Wholesale
Selling to the Middle Buyer for Final Sale to the End Buyer
In contrast to buying wholesale and selling retail to the end customer, you'll be selling as the wholesaler to other sellers, shops and major retailers
THE BASICS
Analysis
Be a Realist
Regardless of the size of business you want to have, be realistic about the magnitude of this undertaking. Do some analyzing to discover if your motives are viable and if you have the means to make necessary investments.

Understand the Market
Know Your Audience
Knowing your target audience is half the battle to success. To be successful in the clothing industry, you'll have to know the current trends and keep up with future trends.
You'll also need to know what's acceptable in your market, including pricing and quality.
Know Your Competition
Understand Your Place
Part of your success is understanding the success of other companies. The clothing industry is filled with products, so you'll need to know what makes you different.
Do you offer better quality, faster shipping or a whole new product all together? Knowing who you're trying to compete with, will help with better decisions for your own business.
Make it Official
Choose a Structure
Regardless of whether you want to work for yourself as a sole proprietor or if you want to go into business with a couple of associates to build a partnership, there are legal documentation requirements.
Choosing a business structure is the first step and foundation for getting your business off the ground legitimately, which provides more options for funding and discounted product availability.
Get Advice
Don't Hesitate to Ask for Help
Stating a business is a serious undertaking and some aspects may require legal assistance. A sole proprietorship (for example) is generally easy to set up, but when in doubt, reach out to your state for requirements and seek professional advice.