A spa day is supposed to feel effortless, so the last thing you want is uncomfortable underwear, visible lines or something that feels awkward under a robe, leggings or soft loungewear.
The best underwear for a spa day is simple, comfortable and easy to forget you are wearing.
Choose comfort first
You may spend part of the day travelling, sitting in relaxation areas, changing between treatments and wearing a robe, so comfort matters more than anything overly structured or decorative.
A well fitting string thong can work particularly well because there is less fabric to bunch under clothing and fewer lines to show through fitted trousers or leggings.
The important part is fit. Your underwear should sit smoothly against the body without digging in, rolling or needing constant adjustment.
Think about what you are travelling in
Many women arrive at a spa wearing leggings, soft trousers or activewear.
Under fitted clothing, a smooth no VPL string thong can give you a cleaner silhouette without adding bulky seams beneath your outfit.
If you are travelling in lighter coloured clothing, shade matters too. Almond is the String Nix shade we recommend under white and very pale fabrics.
Natural fabrics make sense for long, relaxed days
For everyday wear, organic cotton string thong underwear offers a soft, breathable option that feels comfortable against the skin.
String Nix is made using GOTS Certified organic cotton and was designed as one simple everyday thong that works across real wardrobes, from leggings and tailoring to dresses and relaxed weekend clothing.
That makes it an easy choice for a day when you want to think about your underwear as little as possible.
Keep your spa bag simple
You do not need to pack half your underwear drawer.
For most spa days, one pair to travel in and one clean spare pair is plenty.
A spare pair is particularly useful if your spa visit includes swimming, hydrotherapy or other water based facilities and you would prefer to change into fresh underwear afterwards.
Choose something lightweight, comfortable and easy to slip into a small wash bag or overnight bag.
What about treatments?
For many treatments you may be asked to change into a robe or disposable underwear provided by the spa.
What you arrive wearing therefore matters more for your journey, lunch, relaxation time and the trip home.
Simple underwear that is easy to change in and out of usually makes much more sense than anything complicated.
A spa day is a good excuse to choose better basics
The best spa underwear is not really about having special “spa underwear”.
It is about owning everyday underwear comfortable enough that you would happily wear it for a long day of travelling, relaxing, dressing and undressing.
That is where String Nix organic cotton string thongs fit in, soft organic cotton, a smooth finish, six considered shades and a minimal design intended for everyday comfort.
If your underwear drawer already contains pieces that work this hard, packing for a spa day becomes very easy.
Ready to pack your spa bag?
Shop the String Nix collection and choose the shade and size that works for you.
