Retail company (fashion) is looking for an inventory management system with POS integration

We are an investment firm and are looking for a retail management system with POS integration for a fashion retailer with two stores.

The following requirements should be met:

• Merchandise management
• POS system
• Item management
• Customer management
• Label printing
• Integration with our own online store
• Preferably a cloud-based application; otherwise, it should be compatible with both PC and Mac (new purchase)

We plan to have workstations for two cash registers and five admin users.