Tie-Side Bikini Bottom Knots: Stop Slipping and Loosening

Why tie-side bikini bottoms come undone

Tie-side bikini bottoms are designed for adjustability, but that same feature can cause slipping if the knot isn't secure. The ties sit lightly on the hips, and movement—especially in water—can work a simple bow loose. The fix isn't to tie tighter, but to tie smarter.

The Tie-Side Bikini Bottom from Babakini uses adjustable side ties and a low-rise silhouette. The fabric is a textured jacquard blend of polyamide and elastane, which provides stretch and recovery. That stretch is great for comfort, but it means the ties need a knot that holds under tension.

How to tie bikini bottoms securely

A double knot is the most reliable way to keep tie-side bottoms in place. Follow these steps for a secure fit that's still easy to untie when you're done.

1. 1. Adjust the fit first: Slide the ties to your desired position on your hips before knotting. The low-rise design should sit comfortably, not tight.
2. 2. Make a basic knot: Cross the two ties and pull them through to form a simple overhand knot. Pull snugly but not so tight that the fabric bunches.
3. 3. Add a second knot: Tie a second overhand knot directly on top of the first. This double knot creates friction that resists loosening in water.
4. 4. Tuck the ends: If the ties are long, tuck the loose ends under the side band to prevent them from catching on waves or clothing.

The double knot: simple but effective

A double knot isn't fancy, but it's the most practical fix for slipping ties. Unlike a bow, which can unravel with a single tug, a double knot holds firm under repeated motion. It's also easy to undo when you're ready to take off your swimsuit—just work the knot loose with your fingers.

Avoid the temptation to tie the knot extremely tight. Overtightening can distort the fabric and leave marks on your skin. The goal is a secure knot that stays put without digging in.

Product details that affect tie security

• Tie-Side Bikini Bottom - Black: Adjustable side ties allow a customizable fit. Adjustability means you can position the knot where it's least likely to loosen, such as slightly forward on the hip.

  

• Tie-Side Bikini Bottom - Black: Fabric is 89.19% Polyamide and 10.81% Elastane with UPF 50+. The elastane content gives stretch and recovery; a secure knot works with this stretch rather than against it.
• Tie-Side Bikini Bottom - Black: Low-rise design sits comfortably on the hips. A low-rise fit means the ties rest on the hipbone, so knot placement should account for that position.

Care tips to keep ties from loosening

Proper care extends the life of the ties and helps them maintain their shape. Always hand wash your bikini bottom in cold water with a gentle soap. Avoid bleach, tumble drying, dry cleaning, and ironing—these can damage the elastane and make the ties more prone to stretching out.

After washing, line dry your bikini bottom in the shade. Hang it by the waistband rather than the ties to prevent stretching. With the right care, the ties will stay elastic and hold knots better over time.

When to size up for a better fit

If you find yourself constantly retying or if the ties feel too short to double-knot comfortably, your bikini bottom might be too small. The Tie-Side Bikini Bottom is true to size, but if you're between sizes, the brand recommends sizing up for comfort. A slightly larger size gives you more tie length to work with and reduces pressure on the knots.