Say goodbye to distractions at the gym
Engineered to wear under gym leggings. The Workout Thong's quick-dry fabric is supremely comfortable, with functional seams that stay put, but four-way stretch that moves with you. No chafing, no riding up and minimal VPL.
So if you have never found the right pair of workout underwear then give Underdays a try. You’ll never look back.
✓ 10% off your first order
Say Goodbye To Neck & Chest Wrinkles In Just A Few Weeks
Discover the transformative power of our Lift Factor Neck & Chest Firming Cream. Expertly formulated to target wrinkles, sagging, and signs of aging on the neck and chest, this cream promotes skin regeneration, elasticity, and deep hydration. With its luxurious texture that's quickly absorbed, you'll experience an immediate firming effect. Day by day, unveil a more sculpted, youthful neck and décolleté. Elevate your beauty. Redefined.
Over 50+ Rounds of User-testing to create the Perfect Workout Thong
Minimal VPL
Underwear with minimal VPL under leggings.
Sweat-wicking technology
Use of sweat-wicking antimicrobial fabric to keep you fresh & dry– preventing yeast infections.
Squat-proof
Extra stretch to move with your body but also stays in place— no more digging in or riding up anywhere.
Contrast stitching
Functional yet also stylish.
SAGGING NECKLINE
Tighten and lift the sagging skin on your neck, restoring a more defined and youthful contour.
CHEST WRINKLES
Reduce the appearance of fine lines and wrinkles on the chest, revealing smoother, rejuvenated skin.
UNEVEN TEXTURE
HORIZONTAL NECK LINES
HORIZONTAL NECK LINES
Combat the appearance of horizontal lines across the neck.
Our Experts Recommended Solutions
Most popular
90 days money back guarantee
Clinically proven ingredients
Suitable for sensitive skin
Clinically proven ingredients
Clinically Proven Ingredients
Our skincare solutions are developed from the ground up, with scientifically proven active ingredients and the expertise of the best laboratories in the world. Our commitment to meticulous research and development ensures us to bring you innovative and safe products that enhance your natural beauty.
Acetyl Hexapeptide-8
A hi-potency lifting peptide that relaxes facial muscles to effectively reduce the formation of expression lines while diminishing the average depth and length of wrinkles. It also improves skin’s elasticity to achieve a more even, youthful complexion.
Camelia Japonica Flower Extract
Also called “Redsnow”, this flower only blooms in Jeju Island during winter. It has potent antioxidant, anti-inflammatory and anti-pollution benefits. It also boosts collagen production while deeply hydrating the skin and reducing wrinkles and fine lines.
HA7 Complex
A superior combination of 7 types of hyaluronic acid that intensively and deeply hydrates the skin, offering a 24h protection. By filling the gaps between collagen and elastin, it delivers anti-inflammatory effects while boosting skin regeneration and elasticity.
Alpha Complex 10%
A hi-potency complex of 3 peptides that targets wrinkles, fine lines, eye bags, puffiness and dark circles. It redensifies and improves elasticity while enhancing skin hydration and luminance for a visibly younger eye expression.
Copper Tripeptide-1
A signal peptide that boosts skin barrier, enhances skin resilience and prevents signs of ageing. While minimising the appearance of fine lines and wrinkles, it improves skin thickness, elasticity, firmness, and clarity.
Niacinamide
A superior combination of 7 types of A form of vitamin B3 that plays a central role in DNA repair while stimulating collagen synthesis. It also reduces lines and wrinkles and balances sebum production for a refined, brighter complexion.
Hear it from them
Claire M ⭐⭐⭐⭐⭐
Perfect for under running shorts
This is such a great thong under my running shorts. I wear tight fitting hot pants style shorts for running but prefer knickers under them as well. This Underdays thong is perfect, I've now bought 3 and am waiting for more stock to buy a 4th pair. Wash really well, super comfy.
Kari Ann S ⭐⭐⭐⭐⭐
The best 👌
These are the best underwear I've worn. The material is so soft, the styles are really flattering and they are so comfy. Since finding this brand a year ago I haven't worn anything else! The knickers are also good quality and do not ruin or pull in the wash. So worth the money!
Helen H ⭐⭐⭐⭐⭐
Excellent
As someone who hates things and would never wear them this is a winner. I only tried these after enjoying the brief styles and wanting something to wear under my leggings that wouldn't show VPL. I usually go for seamless shorty styles but they are thin materials and don't last. I don't even feel like I'm wearing a thong, or anything with these. So comfortable.
Hear it From Them
JAMIE
" There’s two steps to my skincare routine I never ever skip and that’s a serum + neck care. As I’m ageing I’m seeing more signs of tech neck creeping in so the Lift Factor Neck & Chest Cream has been great at helping to lift and firm the neck and décolleté area. The velvety texture is incredible! "
@jamierockers
HELEN
" I’ve been using the wonderful products from Azio Beauty for many months and wouldn’t really know what to do without them now. 🌿 For you they are luxury products at totally affordable prices. Plain and simple. They look good, feel good and are good. It’s ageless skincare and I’m in my 50’s so they are going to work for any age I’m sure. "
@instyle_helen
ASTRID
"The face serum is great on its own as well as under make up, the night cream is rich and luxurious and the eye serum is great for reducing fine lines and wrinkles. My skin feels plumper and more hydrated when I wake up ! My fine lines are less visible, my skin looks and feels plumper and I have noticed a lovely radiance when I use them!"
@astridiwantyouinmylife
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