How does the sizing run — should I size up or down?

Nike swimwear generally runs true to size, but the low-rise cut sits lower on the hips than high-waist styles. If you sit between sizes or prefer more coverage, consider sizing up. Check the retailer’s Nike swim size chart and measure hip circumference for the best fit.

What’s the best way to care for these to preserve the chlorine-resistant finish?

Hand wash cold separately as directed, rinse thoroughly after each pool or saltwater use to remove chlorine and salt, and lay flat to dry out of direct sun. Avoid machine washing, heavy detergents, and tumble drying to help maintain elasticity and fabric life.

If I want more coverage or support, are there better alternatives?

Yes — if you want fuller coverage or a tummy-smoothing fit, look for Nike high-waist bikini bottoms or styles with wider waistbands and fuller rear coverage. Brands like Speedo and Athleta also offer performance swim bottoms with more support and compression.

Can I return these after trying them on and what should I check before returning?

Return policies vary by retailer, but most accept returns within a specified window if the item is unworn, with all tags and the sanitary liner intact. Confirm the seller’s return window and conditions before purchase and try them on over underwear to preserve hygiene requirements.

Nike Women's Swim Tie String Bikini Bottom in Blue | NESS...

Name: Nike Women's Swim Tie String Bikini Bottom in Blue | NESSG310-440
Brand: Nike
Price: 30.97 USD
Availability: InStock

Overview

The Nike Women's Tie String Bikini Bottom (NESSG310-440) is a low-rise, cheeky swim bottom designed for women who want a minimalist, sporty look without sacrificing pool-ready performance. Constructed from chlorine-resistant fabric with a fully lined interior, it holds up to frequent pool or beach use while offering moderate support and modesty where it counts. The mid-cut leg and low-rise waistband sit on the hips for a contemporary silhouette, and tie strings let you fine-tune the fit. Made largely from recycled polyester, this style appeals to shoppers seeking a balance of durability, sustainable materials, and a fashion-forward fit for casual swims, sunbathing, or active laps in the pool.

Key Features

Material: Body 83% recycled polyester / 17% spandex (chlorine-resistant finish); Liner 100% recycled polyester

Fit: Low-rise waistband designed to sit low across the hips; mid-cut leg sits at the middle of the hip; cheeky bottom coverage

Closure: Tie-string sides for adjustable fit and quick adjustments at the beach or pool

Branding: Small heat-transfer Nike Swoosh for a streamlined, low-profile look

Care & ID: Style NESSG310; Color: Midnight Navy; Size shown: Medium; Care - Hand wash cold separately

Pros & Cons

Pros

Chlorine-resistant body fabric (83% recycled polyester, 17% spandex) for longer-lasting color and shape in pools
Fully lined (100% recycled polyester) for added support and modesty
Low-rise waistband and mid-cut leg deliver a contemporary, flattering silhouette
Tie-string sides let you adjust the fit for comfort and security
Eco-conscious construction uses high recycled content in both shell and liner

Cons

Cheeky coverage may be too minimal for shoppers seeking full rear coverage
Low-rise fit may not suit those wanting tummy coverage or high-waist styles
Hand-wash-only care can be less convenient than machine-washable swimwear
Only available in specific colors/sizes (e.g., Midnight Navy, size M shown), so selection may be limited

Price Comparison & Trends

The Nike Women's Swim Tie String Bikini Bottom in Blue has been noted for its stylish design and functional fit, making it a popular choice among swimwear enthusiasts. With its inclusion on one wishlist, it indicates a level of desirability among potential buyers, even if it's not widely sought after yet. This product may appeal to customers looking for both comfort and style during their aquatic activities. Given its tie string design, it offers adjustable fit and flexibility, making it a versatile piece for various body types. Moreover, the brand recognition of Nike adds an element of quality assurance, appealing to consumers who prioritize trusted brands. As the demand for sustainable swimwear grows, highlighting any eco-friendly features, if applicable, could further enhance its marketability.

Consider purchasing now, especially if you're seeking a blend of style and comfort for your swim needs.

Track this product on LMK.today to get price drop alerts and compare prices across multiple retailers.

Frequently Asked Questions

Yes — the tie-string sides allow you to tighten the fit, and the chlorine-resistant, slightly stretchy fabric helps keep the bottom in place during laps or active beach play. For very vigorous activities, double-knot the ties or pair with a sportier swim brief if you prefer extra security.