When it comes to choosing sanitary pads for periods, individual preferences may vary based on factors such as flow intensity, comfort, absorbency, and personal sensitivities. While I am not familiar with a brand called "femvings," I can provide some general information on what to consider when selecting sanitary pads:

1. Absorbency: Look for pads that offer high absorbency to handle your flow effectively. Some pads come with labels indicating their absorbency levels, such as light, regular, heavy, or overnight. Choose the absorbency level that suits your needs.
2. Size and Shape: Sanitary pads are available in various sizes and shapes to provide a comfortable fit. Consider your flow intensity and body shape when selecting the size and shape of the pad. Longer or wider pads may be preferable for heavier flows, while smaller or slim pads may be suitable for lighter flows.
3. Material: Opt for pads made from soft, breathable materials to prevent discomfort and skin irritation. Cotton pads are a popular choice as they are gentle on the skin and allow better air circulation.
4. Wings: Many pads come with wings, which are flaps that fold over the sides of your underwear to provide extra protection against leakage. Wings can help keep the pad in place and provide a secure fit.
5. Adhesive Quality: Ensure that the pad has a reliable adhesive backing to keep it securely attached to your underwear. This helps prevent shifting or bunching during movement.
6. Scent and Chemicals: If you have sensitive skin or allergies, consider pads that are fragrance-free and free from harsh chemicals, dyes, and chlorine bleach.
7. Brand and User Reviews: It can be helpful to explore different brands and read user reviews to get an idea of the experiences and preferences of others. This can give you insights into the performance, comfort, and overall satisfaction with specific pads.

Ultimately, the best sanitary pad for periods is a personal choice based on your specific needs and preferences. It may be beneficial to try different brands or types of pads until you find the one that works best for you in terms of comfort, absorbency, and overall satisfaction.