Sole One-Piece Swimsuit

Verified claims

Brand DNA

Retailers state the Sole perfectly embodies Jacquemus' minimalism and sensuality

Design

The open back and goldtone buckle are signature Jacquemus design elements

Neckline

The square neckline reflects Jacquemus' architectural aesthetic

Intended use

The minimal coverage and fixed straps prioritize fashion over athletic swimming

Rear coverage

Tanga-cut back provides minimal rear coverage, fully exposing the buttocks.

Side cutouts

Open sides from underarm to waist, anchored by a back strap with goldtone buckle.

Fit

Straps are fixed-length and non-adjustable.

Strap adjustment

Straps are fixed length and cannot be adjusted.

Size selection

Pick size by largest chest, waist, or hip; fixed straps lock length.

Fabric support

Double-layer 78% polyamide 22% elastane fabric provides compression support without underwire

Back anchor

Goldtone back buckle creates rear tension that counterbalances bust load

Strap function

Fixed thin straps position the suit; all bust support comes from the body fabric

Durability

78% polyamide/22% elastane double-layer fabric resists sheerness but is chlorine-sensitive.

Buckle style

Metallic buckle serves as a jewelry-like focal point at the back.

Back closure

Slot-and-twist back closure is tricky to fasten without a mirror or help.

Layering

Eliminates panty lines and creates a smooth silhouette under sheer cover-ups.

Care

Hand wash only; metallic buckle tarnishes in saltwater and chlorine.

Product record

Title

Sole One-Piece Swimsuit

Brand

Jacquemus

Price

305 CAD

Availability

In stock

How the open back and cutouts perform in real life

• The tanga-cut back offers minimal rear coverage on a one-piece silhouette, effectively a thong cut that leaves the buttocks nearly bare; for anyone prioritizing a seamless lower body under a sheer sarong or linen pants, this cut eliminates a panty-line silhouette, though it demands confidence with reduced coverage.
• The partially open sides, described as 'charmingly revealing armholes', carve out a generous cutout from underarm to waist; this creates a sculptural profile and a vertical tan line, but it sacrifices the lateral coverage that keeps a suit from shifting during sidestroke or paddleboarding, so the suit reads as a statement piece for sunbathing rather than a lap-swimming contender.
• Because the open back skips a traditional panel in favour of a single horizontal strap, the majority of the back receives full sun exposure, which is a deliberate advantage for achieving an even, strap-free tan across the entire upper back and spine, but also means any missed sunscreen application there will result in a burn precisely where the skin is often most sensitive.
• The fixed thin straps mean the open back cannot be cinched or loosened to adjust for torso length, so the suit's stay-put performance across the back and shoulders is locked into the brand's sizing block; a torso longer or shorter than the intended proportion may cause the back strap to sag or the shoulder straps to feel restrictive — on-spec sizing is more essential here than in an adjustable-back suit.
• The open back secures via a slot-and-twist metallic buckle that threads through a loop rather than snapping shut — making it a deliberate design focal point but also a fastener that may require a second pair of hands or a mirror to align, since the buckle sits at the center back where vision is limited.

Sizing when the straps can't be adjusted

• Retailers identify the silhouette as a slim fit, meaning the stretch swim fabric is intended to hug the body closely; if you are between sizes or have a longer torso, sizing up lengthens the straps proportionally while still maintaining a streamlined shape, reducing the chance of the fixed straps pulling uncomfortably.
• The fabric's 22% elastane content creates a high-stretch blend, so the non-adjustable straps can extend and recover enough to comfortably accommodate torso lengths up to a few centimeters above or below the size's nominal measurement — a rigid-strap suit demands a near-exact match, but this suit's stretch helps bridge minor sizing gaps.
• With no center back seam or adjustable closure, the entire vertical tension is carried by the two spaghetti straps and the crotch; this makes the goldtone buckle's placement along the spine a direct readout of strap length — a correct torso match centers the hardware as a jewelry-like focal point, while a mismatch shifts it off-target and disturbs the clean back line.
• Jacquemus publishes detailed body measurements in centimeters for every size, from 32/XXS to 46/XXXL; because the fixed straps are graded with the size, matching your largest relevant measure to the chart — typically hip or bust — is the most reliable way to select a size whose strap length will neither dig into your shoulders nor sag at the back.

How much support the wireless cups actually give

• The back strap with its goldtone metallic buckle does more than close the suit — it anchors the open-back design and pulls the side cutouts inward, creating a stable rear tension point that counterbalances the front load and prevents the suit from riding forward during movement, effectively turning the revealing back into a structural component that supports the bust.
• The high elastane content (22%) gives the double-layer a powerful, rubber-band-like recovery that creates a second-skin sensation; when pulled on, the suit immediately tensions across the bust and torso, essentially 'programming' the support level through the wearer's body measurements — no strap tightening or hook adjustment needed — so the support feels uniform and seamless from the moment it's on.
• The suit eliminates underwire and push-up padding in favor of soft, contoured cups that gently shape the bust under the double-layer tension; the result is a smooth, natural profile that reads as deliberate minimalism — an unforced silhouette that feels more like a fashion statement than a technical swimsuit.
• By omitting strap adjustability, Jacquemus forces the support workload onto the double-layer body fabric; the thin straps serve primarily as placement rather than lift, which means the wearer experiences no strap-dig or shoulder grooving even after hours in the suit, because the elastane paneling distributed across the front is what actually carries the bust weight.
• The suit's shell and lining are both an identical 78% polyamide, 22% elastane blend, effectively doubling the compressive load the fabric can bear; this double-layer construction maintains consistent tension and shape recovery even when wet, so the bust is held in place by the suit's own body-hugging elasticity rather than by rigid hardware.

What to expect from the polyamide-elastane fabric over time

• The full lining in the same polyamide/elastane blend doubles the fabric's structural integrity, offsetting the inherent risk of nylon going sheer or sagging as elastane fatigues over time; for a $305 suit with deep armhole cutouts, that second layer is what keeps the design's sharp lines intact after repeated wear.
• High-quality nylon/elastane knits can achieve 95%+ stretch recovery after elongation under ASTM D4964 testing, so the 22% elastane content here is theoretically capable of snapping back cycle after cycle, but real-world performance will fall short if chlorine or high heat degrade the elastane before the nylon shows wear.
• Polyamide’s amide linkages are chemically attacked by hypochlorite ions in pool water, causing polymer chain cleavage that progressively saps elasticity and fades color—this suit will degrade noticeably faster than a polyester-blend alternative if exposed to regular chlorinated swimming, placing it in the 'fashion swim, not training swim' category.
• Jacquemus uses the classic fashion-swim recipe of nylon and elastane, pushing elastane to 22%—just past the industry's common 20%—to amplify second-skin stretch and recovery; the trade-off is that elastane degrades fastest under chlorine and UV, so the suit's long-term shape retention hinges on avoiding heavy pool use.