Quick Answer
Choose WW310 for the Revolution polyester-rayon-spandex blend and front-and-back princess-seam shaping. Choose WW340 when cotton-containing stretch poplin and side vents are more relevant. Cherokee lists center-back references of 27½ inches and 28½ inches respectively, but the source references do not establish an exact one-inch difference in your selected size. Both have three pockets; their shared count should not decide this comparison.
Keep the snap jacket you like; change the part that bothers you
The Revolution WW310 is a logical starting point if your current Revolution scrubs already satisfy your fabric preference. Its listed body blend is 78% polyester, 20% rayon and 2% spandex. The Professionals WW340 instead lists 63% polyester, 34% cotton and 3% spandex stretch poplin. That is a real composition difference, not merely a different collection badge on the same material. Neither name tells us which finished jacket you will prefer against your uniform.
Imagine that your current snap jacket works well at the neck and wrists but feels too short over a particular scrub top. In that situation, changing to a zipper introduces an unnecessary second decision. Keep these two snap models in contention and investigate coverage. If the complaint is specifically the absence of cotton from your present jacket, WW340 offers a direct reason to change. If the complaint is pulling around the shoulders, however, switching fiber composition is not a substitute for checking the cut and correct size.
Cotton content is a preference filter, not a performance score
WW340 belongs on a cotton-containing shortlist; WW310 does not list cotton in its main blend. That distinction is enough to rule one in or out for a shopper who has a clear fiber preference. It is not enough to declare WW340 cooler, less sweaty or more suitable for a certain room temperature. The available specifications do not provide fabric weight, comparative airflow measurements or finished-garment warmth tests. Likewise, the extra percentage point of spandex in WW340 is not a measured advantage in reach or recovery.
Separate the body fabric from the trim when reading a listing. The current WW340 manufacturer description specifies a different polyester-spandex composition for its rib trim. A preference concerning the body material therefore does not necessarily describe every part of the garment that touches a wrist or neckline. If a specific fiber is a firm purchasing restriction, examine the selected garment's complete labeling rather than relying on the short composition line in a comparison. For ordinary preference shopping, use the body blend to narrow the field, then assess the actual garment.
Princess seams and side vents solve different shape questions
WW310's front and back princess seams give the garment shaping within its relaxed women's cut. WW340 is also described as relaxed, with side vents adding openings at the lower edge. A seam following the torso and a slit at the hem are not interchangeable features. The first concerns the jacket's shape; the second affects how the lower edge can separate. Neither guarantees a particular amount of room at the bust, waist or hip, and neither makes the jacket a dedicated petite or tall size.
To compare the shape meaningfully, look at the front closed over the scrub top you intend to wear. For WW310, observe whether the shaped seams lie smoothly rather than being pulled outward by the underlying layer. For WW340, watch the lower snaps and the fabric immediately above the vents when sitting. A vent spreading is not automatically a fault, but tension traveling upward into the fastening indicates that the body shape deserves another look. Compare a neighboring size only after identifying where the restriction occurs; a larger overall size can also change sleeves and shoulders.
| If the concern is… | Inspect on WW310 | Inspect on WW340 |
|---|---|---|
| Torso outline | Front/back princess seams over the top | Relaxed body room above the vents |
| Lower coverage | 27½-inch reference; selected size still needed | 28½-inch reference; selected size still needed |
| Cotton requirement | No cotton in listed main blend | 34% cotton in listed main blend |
Interpret the 27½- and 28½-inch references carefully
The manufacturer-listed center-back numbers make WW340 worth investigating if additional coverage is your priority. They do not let us promise it will land exactly one inch lower than WW310 on you. The observed references do not establish the measurement size for both garments. Size grading, posture and the way a jacket sits over the shoulders affect the hem position. Keep the numbers as screening information, then seek the actual measurement for the size you intend to buy if the difference is decisive.
A useful home reference is a jacket whose back coverage you already like. Measure that garment consistently along the center back, noting where you started, rather than comparing a shoulder-to-hem measurement with a neck-to-hem listing. Also note the length of the scrub top underneath. Someone seeking complete top coverage has a different requirement from someone who is comfortable with a visible lower band of scrub fabric. Before favoring the longer reference, sit at a desk: extra lower-front fabric can occupy space on the lap that a standing photograph does not reveal.
The same three-pocket total leaves a smaller storage decision
Both models pair two front patch pockets with an interior pocket on the right. WW340 describes that inner compartment as a phone pocket, while WW310's listing also identifies a badge loop at the left pocket. These are useful details, but they do not establish compatibility with a particular phone and case. The inside compartment may share space with an item in the outer patch pocket. A nominal total of three does not mean three bulky objects will sit independently without altering the jacket's drape.
Plan the pocket load before comparing appearance. If you normally carry only a phone and a pen, the two models may offer enough similar organization that fabric and coverage remain the deciding factors. If you require a zipped compartment, neither model should be chosen merely because it has an interior pocket. Look elsewhere in the Cherokee collection for explicitly closing storage. Keeping this decision secondary avoids inventing a pocket-performance contest between two conventional layouts that have not been measured or tested against each other.
Replacing one color in a uniform rotation
A jacket purchased to match existing pants and a top needs a more specific check than a broad color word. Record the line, exact selected shade and model of the garments already in your rotation. WW310 may be an attractive starting point when matching Revolution pieces, but even a shared collection does not prove that every production run will look identical. With WW340, make a deliberate comparison rather than assuming a Professionals color with the same name will be indistinguishable from Revolution fabric under your usual lighting.
Inspect the selected Amazon variation before ordering; the linked example is not a promise that every required size or color is currently offered. If the wardrobe requires exact matching, resolve that question before ordering several jackets or arranging decoration. Keep the seller's current return conditions separate from manufacturer sizing guidance, especially if you plan to alter or embroider the garment. ScrubJackets.net provides the comparison and referral links; the transaction and any return request belong with the seller you select.
When the right answer is neither of these two
If cotton content matters but the snap closure is the source of frustration, Core Stretch 4315 is a more relevant next comparison. It has a cotton-majority body blend, a crew neckline and a zipper. That alternative addresses a different requirement instead of forcing a choice between WW310 and WW340. Conversely, do not widen the shortlist merely because another model has more features. When both snap models meet your needs, the selected size, fabric preference and uniform match can settle the decision.
A mixed requirement can settle this pair more decisively than a long feature checklist. If you require cotton in the body but dislike a zipper, WW340 satisfies both starting conditions; WW310 does not satisfy the cotton condition. If you already prefer the Revolution material and want shaped seams with snaps, WW310 preserves that combination. If neither material preference is firm, investigate the two different lower-body designs instead: WW340's side vents with its longer reference, or WW310's princess-seam construction. In that case, the deciding evidence should be the hem and torso relationship with your top, not the near-identical pocket totals.
Questions about this decision
Does WW340 use the same rayon blend as WW310?
No. WW340 lists polyester, cotton and spandex in its main fabric. WW310 lists polyester, rayon and spandex. Check the selected item label if composition is essential; the two collection names should not be treated as synonyms.
Will WW340 cover exactly one inch more of my scrub top?
That cannot be promised. Its listed center-back reference is one inch greater, but the observed manufacturer references do not establish equivalent size measurements. Obtain your selected size measurements and compare how both jackets sit over your top.
Should I size down in WW310 because it has princess seams?
No automatic size change follows from princess seams. Use the applicable chart and assess the closed garment over your intended layers. Shaping describes construction; it does not identify your size or guarantee the amount of ease.
Which of these two has a zipped phone pocket?
Neither is documented here with a zipped phone compartment. Their interior pocket descriptions should not be interpreted as a closure. If a zipper is mandatory, select a model explicitly listing one rather than relying on placement alone.
Final Verdict
Choose WW310 when retaining the Revolution body blend and a shaped snap-front outline is the point of the purchase. Its case is strongest when the conventional neckline and pocket layout already suit you, leaving fabric and torso shape as the remaining decisions.
Choose WW340 when cotton-containing stretch poplin is a deliberate preference and its longer published reference merits checking in your size. Let the side vents, seated hem position and actual uniform-color match confirm that choice. Neither jacket wins on a performance claim that the available evidence does not measure.
Sources & further reading
Product details were checked on September 11, 2026. Refer to the exact garment’s label and current listing before ordering.