Saxx
Built-In Boxer Swim Trunk
CA$49.95CA$85.00-41%
In Stock
These SAXX swim trunks are mid-thigh-length performance swimwear with a built-in boxer liner and a cell-phone pocket, designed for swimming and pool activities. They feature light, fast-drying, non-cling stretch fabric with DropTemp moisture-wicking technology, a micro mesh 3D BallPark Pouch front, a drawcord-adjustable elastic waist, Balloon's Away Vent, and multiple pockets including vertical slits, a hidden side-seam zip, and a piped back pocket. Inseam length is 6 inches (15 cm); user feedback highlights the liner as super soft, stretchy, and ultra comfortable.
- Material
- Light and fast-drying non-cling stretch fabric
- Gender
- male
- Style
- activewear, performance, casual
- Category
- Apparel & Accessories > Clothing > Swimwear
Color
GreenNavy/Midnight Blue
Size
SMALLMEDIUMLARGEX-LARGE
Specifications
Performance swim trunks with built-in boxer, moisture-wicking technology, and multiple pockets.
DropTemp cooling technology, BallPark Pouch, Balloon's Away Vent, multiple pockets including a cell-phone pocket
- Material
- Light and fast-drying non-cling stretch fabric
- Style
- activewear, performance, casual
- Occasion
- vacation, beach-day
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Swimwear
Additional Attributes
- Light and fast-drying non-cling stretch fabric
- DropTemp technology increases body's natural cooling capacity by wicking away moisture
- Built-in boxer with a cell-phone pocket on the thigh
- Micro mesh 3D BallPark Pouch front prevents skin-against-skin friction
- Drawcord-adjustable elastic waist
- Balloon's Away Vent at the fly allows unflattering air to escape
- Vertical slit pockets, hidden side-seam zip pocket and piped back pocket
- Inseam length: 6" (15 cm)
Product Insights
Saxx's Built-In Boxer Swim Trunk integrates a boxer-brief liner with the BallPark Pouch (unchanged since 2006) for chafe prevention and support, featuring sidewalls that prevent chafing when saturated, an air vent to release trapped air underwater, and DropTemp active wicking that keeps you dry for over 7 hours in 93°F heat. The shell is designed around the liner for a relaxed fit, with a quick-drying mesh pocket. It offers versatility for pool-to-street wear without underwear, but comes at a higher price ($85 CAD), though it delivers more swim features than the Lululemon Pool Short.
Verified claims
- Chafe prevention
- Sidewalls prevent chafing when swim trunks are saturated.
- Design heritage
- Pouch design unchanged from 2006 underwear collection.
- Vent
- Balloon's Away Vent prevents air bubbles on water entry.
- Cooling
- DropTemp's active wicking keeps you dry for over 7 hours in 93°F heat.
- Wash durability
- DropTemp fabric stays stretchy and resists wear after washing.
- Value
- Priced at $85 CAD (often $49.95), Saxx delivers more swim features than Lululemon's $78 Pool Short.
- Liner
- Built-in boxer brief with BallPark Pouch and phone pocket replaces mesh liner.
- Brand heritage
- Saxx has 18 years of BallPark Pouch refinement, inspiring loyal repeat buyers.
- Construction philosophy
- Shell designed around pre-existing boxer-brief liner with BallPark Pouch.
- Sizing
- Measure natural waist under the belly button, not pant size.
- Fit style
- Built liner-first: relaxed outer shell, form-fitting inner liner for a casual supportive fit.
- Pocket drying
- The pocket's stretch mesh dries quickly, avoiding waterlogged feel.
- Chafe reduction
- BallPark Pouch and boxer-brief liner reduce groin and thigh chafing.
- Air venting
- Balloon's Away Vent releases trapped air underwater.
- Fabric care
- DropTemp liner retains stretch after washing and dries quickly, reducing mildew risk.
- Construction design
- Integrated design features including air vent, form-fitting liner, and anchored pocket reduce fabric strain, with the BallPark Pouch design validated since 2006.
- Repeat purchase
- Buyers and reviewers commit to only buying SAXX swim trunks.
- Versatility
- DropTemp and integrated liner allow pool-to-street wear without underwear.
Product record
- Title
- Built-In Boxer Swim Trunk
- Brand
- Saxx
- Price
- 85 CAD
- Availability
- In stock
Deep Research
How the BallPark Pouch performs while swimming
- Because the BallPark Pouch provides the targeted support and separation that lead many men to wear underwear under swim trunks, SAXX effectively eliminates the chafing, water absorption, and slow drying that come with that makeshift approach — turning the liner into a performance feature rather than just an extra layer.
- SAXX built its swim line by perfecting the integrated liner and BallPark Pouch first, then designing the outer trunk around it, so the pouch is not a retrofit — this inside-out approach makes the separation feel natural and reliable rather than like an add-on to a generic short.
- WearTesters tested SAXX shorts in wet conditions and reported that the BallPark Pouch's sidewalls prevent skin-against-skin friction during activities like walking in soaked trunks or running on a hot humid day — direct evidence that the 3D pouch holds separation even when the fabric is fully saturated.
- The patented BallPark Pouch in these swim trunks is the exact same design that put SAXX underwear on the map in 2006, so the anti-chafe engineering that works on dry land carries over directly to wet environments — there's no downgrade in the swim version.
Fit consistency and sizing notes
- The Balloon's Away Vent at the fly releases trapped air instantly when you hit the water, stopping the shorts from puffing up into a parachute—a detail that also speeds up draining and eliminates that awkward post-dive billow.
- SAXX's size chart expects you to measure your natural waist—just above the belly button, not at the hipbone—so if you typically wear your shorts lower, using your pant size will likely yield a too-tight fit; a quick tape-measure check avoids returns.
- A hidden pocket on the liner's left thigh lets you carry a key, card, or phone tight to the leg—because it's anchored to the stretch inner layer, not the loose outer short, it doesn't bounce or pull the shell out of shape.
- The outer short is relaxed and non-cling, while the integrated liner is slim and form-fitting through the butt and thighs—so the shorts read as casual boardwear on the outside but provide close-support performance underwear inside, with no visible compression lines.
DropTemp cooling: real-world effectiveness and care
- After machine washing and drying, DropTemp fabric returns with no loss of stretch or visible wear, so the cooling performance of the liner isn’t something that fades after a few spins through the laundry.
- The DropTemp fabric’s moisture-wicking is so rapid that in humid conditions it can push sweat through the outer shell fast enough to leave condensation on vinyl seats, confirming the cooling effect is active and effective rather than just a passive breathable mesh.
- When worn on a 93°F day, the DropTemp liner kept the tester dry and comfortable for over seven hours without any sticky or bunched-up feeling — a real-world benchmark that the built-in liner’s cooling won’t quit halfway through a hot beach day.
How SAXX compares to other premium swim trunks
- The Balloon's Away Vent is a fly-area detail that lets trapped air escape to prevent an unflattering bubble when entering the water — an invention born from Saxx's underwear design language that remains exclusive to its swim line and addresses a practical annoyance most swim trunk brands ignore.
- Saxx's DropTemp technology is designed to wick moisture and increase the body's natural cooling capacity once wet, whereas Lululemon's swim liner focuses on chlorine resistance and water repellency — meaning for hot, active days, the Saxx liner actively works to keep you cooler, not just dry.
- Priced at $85 CAD full retail and often on sale (currently $49.95 CAD), this trunk overlaps with Lululemon's $78 USD Pool Short yet packs in BallPark Pouch, DropTemp cooling, a built-in phone pocket, and a balloon-venting fly — a wider feature set for less money that becomes an even starker value on sale.
- Unlike Lululemon's broad activewear brand, Saxx was built around a patented BallPark Pouch for men's underwear — that same 3D hammock-shaped support structure is integrated directly into these swim trunks, so the chafe prevention and separation that made their boxers cult favorites translate into the water with no compromise.
- Saxx swim trunks have built a loyal following among underwear enthusiasts who already trust the brand's pouch design — the Daily Beast reviewer declares he'll 'replace this suit with another from SAXX' after heavy use, signaling repeat-purchase conviction that goes beyond typical swimwear.
- Where Lululemon's Pool Short uses a standard mesh liner with Xtra Life Lycra for chlorine resistance, this Saxx trunk houses a complete built-in boxer brief featuring the BallPark Pouch and a thigh cell-phone pocket — effectively two garments in one, delivering a level of all-day support and utility that a typical mesh liner can't match.
Built-in boxer liner vs. mesh and brief liners
- The built-in boxer includes a thigh pocket sized for a phone, a feature absent from typical mesh or brief liners, so you can carry a phone hands-free without the bulk of a shell pocket — the phone sits flat against the leg and stays put during movement.
- The boxer-brief silhouette extends down the thigh and fits form-fittingly through the butt and thighs, unlike a brief liner that ends at the groin — the extra coverage stays put during beach sports, provides a no-bunch fit under the shell, and creates a fabric barrier that reduces inner-thigh chafing where a shorter brief liner would leave skin exposed.
- The BallPark Pouch's friction-reducing design measurably cuts down reliance on anti-chafe balms like BodyGlide — testers report using less product before long runs or swims, a practical daily win that a simple mesh liner cannot deliver.
- The DropTemp Cooling Hydro Liner actively wicks moisture to accelerate evaporative cooling, working with sweat or water, while standard mesh liners simply allow passive drainage — for a buyer spending hours in wet trunks, the result is a less clammy, clingy feel and a genuinely cooler experience.
- Despite the fuller boxer silhouette, the liner uses a non-cling stretch fabric and a micro-mesh BallPark Pouch that dries as quickly as a traditional mesh brief — there is no compromise in drying time, meaning the support comes without the damp, heavy feel that can plague thicker built-in liners.
Image Analysis
3 images- 01
Product
Men's mid-thigh swim trunks with an elastic waistband and visible drawstring, rendered in a muted tropical leaf print. Small square logo patch on the right thigh near the side seam.
- Silhouette and fitMid-thigh length trunks with a straight, relaxed leg cut visible on a model; the hem falls above the knee.
1 region
x 0.14 · y 0.53 · w 0.72 · h 0.33 (high) - WaistbandElastic waistband gathered around the waist with an external drawstring threaded through the front center.
1 region
x 0.28 · y 0.48 · w 0.44 · h 0.10 (high) - Drawstring and agletsFlat off-white drawstring tied in a loose bow at center front with small dark/black cylindrical aglet tips.
1 region
x 0.36 · y 0.52 · w 0.28 · h 0.08 (high) - Fabric patternAll-over muted tropical foliage print with overlapping large leaf shapes in subdued green and beige tones.
1 region
x 0.16 · y 0.56 · w 0.68 · h 0.30 (high) - Side seam and pocket openingVisible vertical side seam on the right side of the shorts; a pocket opening is implied along this seam but the pocket interior is not visible.Partial
1 region
x 0.63 · y 0.58 · w 0.18 · h 0.28 (medium) - Logo patchSmall square dark patch sewn onto the right thigh near the side seam; contains a small light mark or symbol but characters are not transcribed.
1 region
x 0.69 · y 0.74 · w 0.05 · h 0.07 (high)
Other
Image shows a torso-up model wearing the swim trunks against a plain light background; neutral studio lighting with soft shadows, and the model poses with one hand touching the neck.
- Model and poseMale model shown from upper thighs to just above the head, posed three-quarter with left arm bent and hand behind neck and right arm relaxed by side.
1 region
x 0.06 · y 0.02 · w 0.88 · h 0.72 (high) - Visible tattooSingle circular eye-like tattoo and a narrow band tattoo visible on the model's right forearm.
1 region
x 0.72 · y 0.44 · w 0.16 · h 0.18 (high) - Background and lightingPlain light gray to off-white studio background with even, soft lighting and slight shadowing at the left side of the model.
- Image crop and framingProduct image cropped to include model from upper thighs to just above the head; lower legs and feet are outside the frame.
Colors
muted sage green and beige foliage· main fabric#9C9A94off-white· drawstringblack· drawstring agletsdark charcoal· logo patch- Silhouette and fitMid-thigh length trunks with a straight, relaxed leg cut visible on a model; the hem falls above the knee.
- 02
Product
Mid-rise swim trunks with elastic waistband, external drawstring, side zip pocket with visible zipper pull, and an allover muted tropical leaf print on lightweight woven fabric.
- WaistbandElasticized waistband with gathered fabric and a visible external drawstring tied in a bow at center front; drawstring ends capped with dark rectangular tips.
2 regions
x 0.18 · y 0.10 · w 0.64 · h 0.16 (high); x 0.52 · y 0.16 · w 0.22 · h 0.18 (high) - Side zip pocketVertical side pocket on the left front with a visible black zipper and short black cord pull; pocket opening set into the side seam.
1 region
x 0.16 · y 0.22 · w 0.12 · h 0.14 (high) - Fabric patternAllover muted tropical leaf print featuring overlapping large palm and monstera leaf shapes in desaturated greens, beiges and soft pinks; print covers entire visible surface of the trunks.
1 region
x 0.08 · y 0.20 · w 0.84 · h 0.68 (high) - Side seam and hemVertical side seam visible on left leg and single-stitched hem at leg openings; hem sits above mid-thigh on the model.
2 regions
x 0.10 · y 0.56 · w 0.36 · h 0.30 (high); x 0.46 · y 0.58 · w 0.38 · h 0.30 (high) - Brand tagSmall rectangular fabric tag at the upper left pocket seam with an unreadable small mark or logo.Partial
1 region
x 0.10 · y 0.20 · w 0.04 · h 0.05 (medium)
Other
Cropped studio shot showing model from lower torso to mid-thigh with neutral light and soft shadows; hands and forearms visible at image edges and plain light gray background.
- Shot compositionCropped front-facing studio image framed from just below the chest to mid-thigh, centered on the trunks and waist area.
- Model presenceMale model torso, hips and upper legs visible with both hands shown near the trunks; a forearm tattoo is visible on the right arm.
2 regions
x 0.00 · y 0.00 · w 0.30 · h 0.70 (high); x 0.70 · y 0.00 · w 0.30 · h 0.70 (high) - Lighting and shadowsEven soft studio lighting with gentle shadows under the waistband and at the inner thigh, minimal specular highlights.
- BackgroundPlain light gray neutral background with no visible props or packaging.
Colors
muted sage beige· main fabric#A39C93desaturated forest green· leaf printmuted dusty rose· print accentsoff-white· drawstringmatte black· zipper pull- WaistbandElasticized waistband with gathered fabric and a visible external drawstring tied in a bow at center front; drawstring ends capped with dark rectangular tips.
- 03
Product
Rear view of a pair of mid-length swim trunks on a model; elastic waistband, all-over muted tropical leaf print, a single horizontal rear welt pocket at right, and a small black brand tag at the waistband. A short black drawstring extends from the right side.
- View and fitRear-on model view showing the swim trunks worn at the natural waist with the waistband sitting just above the hips.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.39 (high) - WaistbandElasticated waistband with visible gathered stitching along the top of the trunks.
1 region
x 0.18 · y 0.57 · w 0.64 · h 0.07 (high) - Rear pocketSingle horizontal rear welt pocket located on the right side of the seat with a narrow stitched opening.
1 region
x 0.62 · y 0.67 · w 0.18 · h 0.10 (high) - Brand tabSmall rectangular black fabric tag sewn into the top edge of the waistband near the pocket with a small light-colored mark or logo.
1 region
x 0.74 · y 0.62 · w 0.04 · h 0.04 (medium) - DrawstringShort black drawstring emerging from the right side of the waistband and hanging down along the hip.
1 region
x 0.80 · y 0.64 · w 0.06 · h 0.18 (high) - Fabric patternAll-over muted tropical leaf print with overlapping large leaf shapes and subtle linear texture in desaturated greens, taupe, and brown tones.
1 region
x 0.12 · y 0.58 · w 0.76 · h 0.36 (high) - Material appearanceLightweight woven fabric with a matte finish and slight surface creasing where the fabric folds.
1 region
x 0.18 · y 0.62 · w 0.64 · h 0.30 (high) - HemStraight-cut hem finishing above the mid-thigh.
1 region
x 0.20 · y 0.86 · w 0.60 · h 0.08 (high)
Other
Studio product shot showing the model from behind against a plain light background; even soft lighting with minimal shadows and the model cropped at the head and knees.
- Shot compositionCentered rear view of a standing male model cropped near the top of the head and just below the knees; trunks occupy the lower central portion of the frame.
- BackgroundPlain light gray to off-white seamless background with no visible props.
- Lighting and shadowSoft, even studio lighting producing gentle shadows along the left side of the model and minimal specular highlights.
- Model skin and tattooModel's bare back and arms visible; thin dark armband tattoo on the left forearm.
1 region
x 0.09 · y 0.58 · w 0.16 · h 0.20 (high)
Colors
muted olive-taupe leaf print· trunk fabric#948A7Dblack· brand tag and drawstring- View and fitRear-on model view showing the swim trunks worn at the natural waist with the waistband sitting just above the hips.
Documents & Data
Q&A
3 answered- Does the fabric provide any UV protection (UPF rating)?
- The product description does not mention a UPF rating or any specific UV protection properties, so we cannot confirm that the fabric provides sun protection.
- Can the DropTemp technology be activated without water (e.g., just by sweating), or does it only work when the fabric is wet?
- Based on the product description, DropTemp technology works by wicking away moisture to enhance cooling, so it activates with any moisture source, including sweat or water — no need for full submersion.
- Are they swimshorts or underwear?
- They are swim trunks with a soft, boxer-brief-like built-in liner for comfort and support.
Reddit Insights
1 threads · r/swimmingpoolsThe single Reddit user who has tried Saxx swimwear enthusiastically praises its super soft, stretchy, and comfortable built-in liner, and states they will only buy Saxx swimwear going forward.
positive sentiment20% match
The sole comment about the product is strongly positive, emphasizing comfort and brand loyalty.
Themes
Liner comfort and materialpositive
Use Cases
- Swimming and pool activities
Source Threads
Glowing review of Saxx swimwear liner
Have you tried SAXX brand swimwear? The liner is super soft, stretchy and ultra comfy. I will only buy swimwear from SAXX after trying them last year.
u/CoreyOnr/swimmingpoolsView thread →