Outdoor products if you want to simply open a store to sell only need some corresponding business license can be, if you want to carry out side business such as adding a team service will need to open some qualification class certificate.
So simply open a store does not require qualification, the online store are able to hang platform sales.
For example: Taobao, Tmall, Jingdong, Alibaba, Pinduoduo, Amazon, ha donkey outdoor mall. These are some of the well-known platforms can be sold.
If you think these platforms are not enough to meet your requirements, there are also many sports and outdoor tide brand e-commerce platform.
You can also target some community directed sales, there are a lot of travelers, sports people. There will be a lot of content e-commerce platform. You can go and try to station.