Rhoback Swim Trunks Sizing and Fit: A Men's Buying Guide

Quick answer

Choose your normal waist size in Rhoback swim trunks if you want a standard athletic fit; size up only if you prefer a looser, below-the-knee feel or have a longer torso. Lined trunks are the simpler choice for swimming and all-day wear, while unlined trunks give you more control over your support layer. If you're between sizes, go with the larger one for tailgating and beach days.

How Rhoback swim trunks are sized

Rhoback swim trunks follow standard men's waist sizing, so start with the waist measurement you use for jeans or chinos. The brand does not publish a separate vanity size chart for swim, which means your usual size is the right baseline. If you normally wear a 32 waist in Rhoback joggers or polos, order a 32 in swim trunks.

The waistband is elasticized with a drawstring, so there is some built-in adjustability. That said, the trunk's overall fit through the seat and thighs is fixed by the cut. If you have a larger seat-to-waist ratio, you may want to size up to avoid pulling across the hips.

• Measure your waist at the height you wear your pants, not at your natural waistline.
• Check the size chart on the product page for exact waist and inseam numbers.
• If you are between two sizes, choose the larger one for a relaxed fit.

Lined vs. unlined: which Rhoback trunk is right for you

Rhoback offers both lined and unlined swim trunks. The lined version has a built-in brief, which eliminates the need for separate underwear and reduces chafing when you're wet. The unlined version is essentially a shell short, so you wear your own support layer underneath.

For most guys, lined is the easier choice: it's one less thing to pack, and it dries faster because there's no separate layer. Unlined trunks make sense if you prefer a specific underwear style (like compression shorts) or if you use the trunks for both swimming and casual wear where a liner might feel bulky.

• Choose lined if you want all-in-one convenience and quick drying.
• Choose unlined if you want to control your support level or wear the trunks as everyday shorts.
• Both styles have the same outer shell fabric and fit, so sizing does not change between them.

Fit details that affect comfort and movement

Rhoback swim trunks are cut with a mid-rise and a slightly tapered leg. The inseam length is not published on every product page, but most Rhoback trunks land around 7 inches, which hits mid-thigh for an average-height guy. If you are taller or prefer more coverage, size up or look for a longer inseam style.

The fabric is a performance blend with four-way stretch and moisture-wicking properties, similar to the FreeStride fabric used in Rhoback joggers. That means the trunks move with you and dry quickly, but they are not as stretchy as a pure elastane short. If you have very muscular thighs, consider sizing up to avoid a tight fit through the leg opening.

• Check the product page for the specific inseam measurement before you buy.
• The drawstring waist lets you fine-tune the fit, but it won't fix a too-small seat.
• If you plan to wear the trunks for activities like volleyball or tailgate games, prioritize a secure waist and roomy leg opening.

How to choose the right size for tailgating and travel

For tailgating, you want a trunk that stays put when you're moving around, sitting on coolers, and standing for hours. A lined trunk with a drawstring waist is the most practical because it won't shift or require constant adjustment. If you're between sizes, go with the larger size for extra room when you sit down.

For travel, pack one lined and one unlined trunk if you're unsure. The lined version doubles as a swimsuit and casual short, while the unlined version can be worn with a t-shirt for a day out. Both pack small and resist wrinkles, so they fit easily in a carry-on.

• Lined trunks are the best swim trunks for tailgating because they stay in place.
• Unlined trunks work better if you want to wear them as everyday shorts after the event.
• Bring two pairs on a trip: one for water, one for dry land.

Matching your Rhoback swim trunks with other gear

Rhoback swim trunks pair naturally with the brand's performance polos, which share the same moisture-wicking and four-way stretch technology. If you're heading from the pool to a tailgate, a quick-drying polo like The Geo Bloom Performance Polo or The Tennessee BBQ Performance Polo keeps you looking put-together without changing your whole outfit.

For cooler days or travel days, the Delta Performance Jogger in Postgame Grey offers the same easy movement and a hidden media pocket, so you can carry your phone without a bag. These pieces are not swimwear, but they complement the trunks in a weekend bag.

• Performance polos dry fast and resist wrinkles, making them a good match for swim trunks.
• Joggers are for after the water, not in it.
• Stick to your normal size in polos and joggers if you already know your Rhoback fit.

Decision rules for buying Rhoback swim trunks

• If you want one trunk for swimming and lounging: Choose a lined trunk in your normal waist size. The built-in brief means no extra layer, and the drawstring waist keeps it secure. Best all-rounder: lined, true to size.
• If you have muscular thighs or prefer a looser fit: Size up one waist size. The leg opening is tapered, so sizing up gives you more room without the waist being too loose thanks to the drawstring. Size up for roomier legs.
• If you plan to wear the trunks as everyday shorts: Choose unlined and wear your preferred underwear underneath. This gives you more flexibility for non-swim activities. Unlined for dual use.
• If you are between sizes and unsure: Go with the larger size. Swim trunks that are slightly loose are more comfortable than ones that are too tight, especially when sitting or moving around. When in doubt, size up.

Rhoback products that work with your swim trunks

• Delta Performance Jogger | Solid - Postgame Grey: Delta Performance Jogger | Solid - Postgame Grey features FreeStride fabric with four-way stretch, moisture-wicking technology, and a hidden media pocket. A comfortable post-swim or travel layer that keeps your phone secure and moves with you.
• The Geo Bloom | Performance Polo | The Geo Bloom - White/Country Blue: The Geo Bloom | Performance Polo | The Geo Bloom - White/Country Blue has breathable fabric with moisture-wicking and four-way stretch, a crisp collar that holds its shape, wrinkle-free material, and UPF sun protection. A quick-drying polo that transitions from the pool to a tailgate without looking rumpled.
• The Tennessee BBQ | Performance Polo | The Tennessee BBQ - White/Bold Red - TN: The Tennessee BBQ | Performance Polo | The Tennessee BBQ - White/Bold Red - TN shares the same breathable, moisture-wicking, four-way stretch fabric with a shape-holding collar, wrinkle-free finish, and UPF sun protection. A team-colored option for game days that pairs well with swim trunks for a casual, sporty look.

Who these trunks are for

Best for

• Men who want a performance swim trunk that dries fast and moves with them
• Tailgaters and travelers who need one pair that works for water and land
• Guys who already know their Rhoback size in polos or joggers

Not for

• Swimmers who need a tight, competition-style brief
• Anyone who prefers a very long, board-short-length trunk
• Shoppers who want a full size chart with detailed measurements for every style