Quick answer
Before buying a swim set online, confirm three things: your bust and hip measurements against the size chart, the coverage level of both the top and bottom, and the return window for swimwear. If you are between sizes or prefer adjustable straps, size up. Prioritize sets with adjustable sides or straps so you can fine-tune the fit.
Measure yourself, not your clothing size
Online swimwear shopping starts with a soft measuring tape. Measure your bust at the fullest point, your natural waist, and your hips at the widest point. Compare those numbers to each brand's size chart because swim sizing often runs differently from ready-to-wear. If your bust and hip measurements fall into different sizes, choose the size that fits your larger measurement and use adjustable features to tailor the rest.
Decide on coverage before you fall in love with a print
Swim bottoms range from full coverage to cheeky, and tops from modest to minimal. Look at the product description for words like 'cheeky cut' or 'high waisted' and check model notes if available. If you prefer more coverage, look for high-waisted or full-coverage styles. If you want a flirty look, cheeky cuts work well but may require sizing up for comfort.
Check the fabric and lining details
Most swimwear uses a nylon-spandex blend for stretch and recovery. Double lining adds opacity and structure, which matters for lighter colors. If the product page does not mention lining, assume it may be single-lined and consider a darker color or a style that offers more coverage. Chlorine, salt, and sunscreen can degrade fabrics over time, so rinse your swim set in cool water after each wear.
Understand the return policy for swimwear
Many retailers require the original hygienic liner to be intact for returns. Check the return window and any exclusions before ordering. If you are unsure about sizing, order two sizes if your budget allows and return the one that does not fit. This is often more reliable than guessing, especially for final-sale items.
Decision rules for buying a swim set online
- If you are between sizes: Size up, especially for cheeky cuts or styles with adjustable sides. You can tighten straps, but you cannot add fabric. Check the size chart and model notes to confirm.
- If you want a versatile set: Choose a solid color with moderate coverage and adjustable features. This works for swimming and lounging. Avoid high-maintenance fabrics like delicate lace for frequent pool use.
- If you need support: Look for underwire, boning, or adjustable straps. These features provide lift and shape. Check that the top has a secure closure and wide straps if you are larger-busted.
Product facts to know
- Lydia Bottom - Pink Plaid: The Lydia bikini bottom is a cheeky cut bottom with adjustable sides and contrast binding. We recommend sizing up if you prefer to wear the straps higher on the waist. Adjustable sides let you customize the rise, but if you want a higher waist, sizing up prevents digging.
- Riley Garter Set Black: Riley is a low cut underwired demi-bra made with flower embroidery lace and adjustable back straps. The set includes a matching thong and garter with gold hardware. Underwire and adjustable straps provide lift and support, making this a good choice for special occasions rather than all-day swim.
Fit guidance
Best for
- Shoppers who measure themselves and compare to size charts
- Those who prefer adjustable straps and sides for a custom fit
- Buyers who check return policies before ordering
Not for
- Shoppers who guess their size based on clothing size
- Those who ignore coverage details and expect a different look
- Buyers who do not check return windows for swimwear
