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Road Gear

28 Drop-tail bibs tested and rated in seven ways

15 years ago, everyone ‘knew‘ you couldn’t drop trou in bibs without taking off your jersey. Imagine what you might ‘know’ tomorrow.

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Bib shorts are evolving. If pure shorts are “antique,” and the Lycra in a racerback bib pattern is classic, then our current moment of drop-tail bibs is the modern era.

Here we take a comparative look at 28 drop-tail bib shorts. Each of the designs is slightly different, but they all work to offer the convenience of shorts with the support and coverage of a bib.

In addition to rating each pair in seven categories — chamois, seams, material, compression, gripper, straps, ease of use — we also give you our picks for the best in a few different styles.

Also read: Black-owned cycling apparel companies

These drop-tail designs intended for women hopefully make more converts from the cave-drawn religions of shorts to the efficient transcendence of bib shorts. 1,500 years ago, everybody “knew” that the earth was the center of the universe. 500 years ago, everybody “knew” that the earth was flat. 15 years ago, everyone “knew” you couldn’t drop trou in bibs without taking off your jersey.

Imagine what you might “know” tomorrow.

Bib styles

Drop-tail bibs come in six general bib short patterns: Racerback, archback, crossback, halter, suspender, and zipper, with the vast majority being one of the first four formats or styles. Each style has its pros and cons, and a top-rated pick of the best bib short of that type.

Racerback: two straps in the front become one at the shoulder blades; the clasp, hook, or magnet is at the small of the back.
Pros: Use of the drop-tail doesn’t stretch the straps.
Cons: Not friendly to riders with shoulder mobility issues; rely upon the strength of the magnet or hook.

Rapha Detachable racerback bib short. (Photo: Rapha)

Best racerback
Rapha Detachable – This magnet is strong enough to snap the clasp together and is the reason the Rapha detachable beat out the I.RIS. The Detachable has all the features of a true classic — wide leg grippers, simple but bold reflective branding — and it does more than just add a magnet and elastic paneling at the lower back so the shorts can come down. Sturdily made, these bibs feature a slightly thicker separate back panel that protects the rider’s skin from the clasp. That feature allowed Rapha to beat out Givelo, the runner-up in this category. Like the other racerbacks, the Rapha Detachable bib avoids showing lower back skin when worn with short-torsoed jerseys.

Arch-back: for the purposes of this article, two straps from the front to the rear of the waist, connected by a horizontal strap at the shoulders. The horizontal strap takes the place of a J-hook, and can form an arch.
Pros: Straps lay flat more easily.
Cons: Longevity of waist compression is highly dependent upon the pattern used for construction and quality of the fabric used in hip panels and straps.

Velocio Concept bib short. (Photo: Velocio)

Best arch-back
Velocio Concept – The top-of-the-line bib from the company that has quietly challenged the market with the most varieties of drop-tail designs released over time, the Concept would be best overall for riders who prefer a wide and soft leg gripper. Lay-flat back straps, an excellent chamois, and an easy-to-use drop-tail make it the best in category.

Halter: two front straps form a loop that goes over the back of the neck.
Pros: No strap to twist behind the rider.
Cons: Strap may cut into the back of the rider’s neck.

Cafe du Cycliste Sophie bib short (Photo: Cafe Du Cycliste)

Best halter
Cafe du Cycliste Sophie – Halters can be loose and unsupportive in the body, while the only strap can cut into the back of the rider’s neck. The Cafe Du Cycliste Sophie shorts avoid those issues by having a high waist and using dual compressive mesh for the body. The form-hugging construction takes some of the pressure off the neck strap. The only reason it isn’t the overall winner is the need to open the jersey to use the halter feature.

Crossback: two straps cross over the one’s back.
Pros: Ease of use.
Cons: Longevity is highly dependent upon item construction pattern, frequency of use, and quality of fabric used in hip panels and straps.

Endura Pro SL bib short (Photo: Endura)

Best crossback
Endura PRO SL – The front fabric is like a bathing suit, covering everything from the neck downward, and I hate that, but it does feel compressive, and smooths out any bra lines. The unique white bib upper was visible through a thin jersey, however, which is one reason I usually hate when bib uppers are white, let alone when they form a full-frontal suit that negates the need for a thin base-layer. I love the fit of these bibs, which should work for many people, while my dislike of the color is subjective. The PRO SL and the Pearl Izumi P.RO. are the only two bibs with overlapping rear straps or panels that form a “V” at the lower back, resulting in an easily usable drop-tail that is also high enough to wear with an open short-torsoed jersey. A medical-grade elastomer bonded to foam adds a new level of shock absorption to the chamois. Additionally, you may have a choice of chamois width.

Suspenders: two straps attached at the front go straight over the shoulders, straight down the back and attach on the same side of the waist or hip.
Pros: Ease of use.
Cons: Straps may be so loose that they’re ineffective at keeping the bibs up and fall off the shoulder if not adjusted.

Bontrager Meraj bib short (Photo: Bontrager)

Best suspenders
Bontrager Meraj – Not a common structure, there are only two suspender bibs on this list, but this is the only bib with an adjustable strap length like a bra. Combined with a very good chamois and compressive knit fabric, the Meraj provides unique flexibility in the torso.

Zipper: horizontal or vertical zipper at the rear waist, or hips.
Pros: Fit is secure and won’t stretch.
Cons: If the zipper fails the rider could be fully exposed.

Bioracer Epic Bib short (Photo: Bioracer)

Best zipper
No two bibs on this list are similar enough to fairly compare, and I don’t recommend a zipper for this function. But if we had to pick a category winner, a vertical bib zip like the Bioracer would be preferable, since it can be held closed more easily with safety pins should it break while on a ride.

Best overall
Pearl Izumi P.R.O. – This Archback is shorter in the leg than I personally like, with an 8.5-inch inseam, but hits all the notes of a fantastic set of modern bibs: gripperless leg panels, minimum seaming, and uppers the same color as the bib. The straps widen and cross at the waist, meaning short-torsoed jerseys won’t reveal skin in the back when in the riding position, which is the single biggest visual problem non-racerback drop-tail bibs face. Ultimately it’s the ease of use (no magnets or hooks), the high waist in the back, and the silkiness of the fabric that secured the best-overall spot.

Honorable mentions:
Soomom Reflective and I.RIS Signature shorts. Both bibs are less than $200 but rated top-10 in testing. The Soomom stood out by being fully reflective, while the Signature is the best pair of drop-tail bibs with an MSRP under $180.

Best drop-tail bib shorts rated and ranked

Brand/Model Total Chamois Seams Material Compression Gripper Straps Ease of Use
Velocio Concept 34 5 5 5 4 5 5 5
Pearl Izumi P.R.O. 34 5 5 5 4 5 5 5
Endura Pro SL 32 5 5 5 4 5 5 5
Velocio Bib Tights 33 5 5 5 5 5 3 5
Soomom Pro Reflective 32 4 5 5 4 5 5 5
Cafe du Cycliste Sophie 32 5 5 5 4 5 4 4
Givelo Mayfly 32 5 5 5 4 5 4 4
Iris Signature III 32 5 5 5 4 5 4 4
Rapha Detachable 32 5 5 5 5 4 4 4
Pactimo Summit Classic 32 5 4 5 4 5 5 4
Rapha Pro Team Winter 32 5 4 5 5 5 4 4
Assos UMA GTV C2 32 5 5 5 5 4 5 3
Velocio Foundation 31 4 5 4 4 4 5 5
DNA QOM Bib Short 30 5 5 4 3 4 4 5
Alé PRR Future 30 4 5 5 3 4 4 5
Bontrager Meraj 30 5 4 3 4 4 5 5
Clipt’N Destiny 30 5 4 3 4 4 5 5
Shebeest Petunia Bib 29 3 4 5 4 4 4 5
7Mesh WK3 29 3 3 4 4 5 5 5
7Mesh WK3 Cargo 29 3 3 4 4 5 5 5
Pearl Izumi Expedition 28 4 5 4 2 5 4 4
Endura FS260 28 5 4 4 3 4 4 4
Giro Expert 28 4 4 4 3 4 4 5
Specialized Race Series Bib 27 4 4 4 4 4 4 3
Specialized SL Bib 27 4 4 4 3 4 4 4
Rodeo Adventure Explorts 27 3 4 4 4 4 3 5
Reggie Long Range Dropper Bibs 25 4 3 3 3 3 5 4
Van Rysel Decathlon Quick Zip 22 3 2 3 3 4 3 4
Pactimo Ascent Vector ? ? ? ? ? ? ? ?
Universal Colours Chroma ?
Universal Colours Mono ?
Bioracer Epic ?
Gore Ardent ?
Rating Key Chamois Seams Material Compression Gripper Straps Ease of Use
Rating 1:
That bad
Unrideable, this is a cheesegrater The threads are made of fishing line and are unevenly sewn to boot Rough like sandpaper Floppy, nonexistent Cuts into your leg Slice into your shoulders like they’re cutting bread You need 4 arms
Rating 2:
Not that bad
Short rides only Uncomfortably sewn and/or impractically placed The cheapest no-stretch polyester that doesn’t breathe Like a stocking Sausage leg They’re annoying instead of painful, require some fiddling to lay flat You really need to have good shoulder mobility
Rating 3:
Century-acceptable Normal, faux latlock, a loose thread or two Basic spandex/poly Like leggings Only slight sausage leg Moderate fiddling, no pain, not annoying Moderate fiddling
Rating 4:
Very Good
Century Ready Faux flatlock, fine thread or stitching Softt, supportive spandex/poly/nylon Like good gym leggings Comfortable, no sausage leg, but you know it’s there Light and comfortable on the shoulders Some fiddling but secure once set
Rating 5:
Like sitting on a silken cloud Flatlock, fine thread, and smartly patterned Buttery soft and not transparent upon stretching Like a Kardashian’s favorite Spanx One smooth leg panel, no separate gripper panel. Feels like it’s not there, but it is. Lay flat without fuss, are breathable, hold everything in place, fun print as bonus I could almost do this one-handed

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