Sizing · Updated SS26
FIT &
STYLE
GUIDE.
Our suits may run a touch smaller than other brands — Q fabric is engineered to hug your body and stay there. Measure yourself before ordering.
If you’re between sizes, size up. You can always tighten later.
!
The Q fit · Read this onceQ fabric resists stretching for less drag. This can feel tight if you’re new to performance suits. If worried — size up.
Size up if unsure
Step 1 — Before you order
How to
measure.
Use a soft tape, hold it snug — not tight — standing relaxed. Measurements over clothing run a full size large.
01 — Bust / Chest
Fullest part
Tape level across the widest point, parallel to the floor.
02 — Natural waist
Narrowest point
Bend sideways — the crease is your natural waist.
03 — Hips / Seat
Widest part
Feet together. Tape the fullest curve, ~8 inches below waist.
04 — Torso (one-piece)
Shoulder to crotch
Over shoulder, through the legs, back to start.
!
The Q rulePerformance suits feel tight on land — that’s the design. First-time buyer? Size up.
Women’s Sizing
Women’s one-piece.
Classic Strap, Tieback, Skinny Strap, Sunback Tank, High Hip, X/Y Back cuts. The number on the size bar is your size — order by chest first.
Women · One-piece
FIG.W-01
FIG.W-01| Size | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 |
|---|---|---|---|---|---|---|---|---|---|---|
| Bust - Chest | 31-32 in | 32-33 in | 33-35 in | 35-37 in | 37-39 in | 39-41 in | 41-42 in | 42-44 in | 44-46 in | 46-48 in |
| Waist | 24-25 in | 25-26 in | 26-28 in | 28-30 in | 30-31 in | 31-33 in | 33-35 in | 35-38 in | 38-40 in | 40-42 in |
| Hips | 33-34 in | 34-35 in | 35-37 in | 37-39 in | 39-41 in | 41-43 in | 43-44 in | 44-46 in | 46-48 in | 48-50 in |
| Torso | 57 in | 58 in | 59 in | 60 in | 61 in | 62 in | 63 in | 64 in | 65 in | 66 in |
Q Race Pro · Q Core — Sized for compression. Size up for relaxed.All measurements +-0.5 in
Girls’ Sizing
Girls’ swimwear.
Sized by age. Use height and weight to confirm if your swimmer is between sizes.
| Age | 04 | 06 | 08 | 10 | 12 | 14 |
|---|---|---|---|---|---|---|
| Bust - Chest | 22-23 in | 23-25 in | 25-27 in | 27-29 in | 29-30 in | 30-32 in |
| Waist | 22-23 in | 23-24 in | 24-25 in | 25-26 in | 26-27 in | 27-28 in |
| Hips | 23-24 in | 24-26 in | 26-28 in | 28-30 in | 30-32 in | 32-34 in |
| Torso | 38-40 in | 40-43 in | 43-46 in | 46-48 in | 48-50 in | 50-53 in |
| Height | 40.8-44.4 in | 44.4-48 in | 48-52.8 in | 52.8-55.2 in | 55.2-58.8 in | 58.8-61.2 in |
| Weight (lb) | 35-41 | 41-51 | 51-64 | 64-75 | 75-90 | 90-104 |
Between sizes? Size up for room to grow.All measurements +-0.5 in
Women’s Sizing
Women’s bikini.
Tops and bottoms sized separately. Top by bust; bottom by waist and hip.
Women · Bikini
FIG.W-02
FIG.W-02| Size | XS (26) | S (28-30) | M (32-34) | L (36-38) | XL (40-42) | XXL (44) |
|---|---|---|---|---|---|---|
| Bust - Chest | 31-33 in | 33-36 in | 36-39 in | 39-42 in | 42-45 in | 45-48 in |
| Waist | 24-27 in | 27-30 in | 30-33 in | 33-36 in | 36-39 in | 39-42 in |
| Hips | 33-35 in | 34-38 in | 38-41 in | 41-44 in | 44-47 in | 47-50 in |
Mix and match top and bottom sizes. Tip: Ciara tops run smaller — size up.All measurements +-0.5 in
Men’s Sizing
Men’s jammer & brief.
The number on the size bar is your size. Waist is the primary measurement — Atlas Jammer and Jammer use the same sizing.
Men · Jammer
FIG.M-01
FIG.M-01| Size | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 |
|---|---|---|---|---|---|---|---|---|---|---|
| Waist | 28-30 in | 30-32 in | 32-34 in | 34-36 in | 36-38 in | 38-40 in | 40-42 in | 42-44 in | 44-46 in | 46-48 in |
| Hips | 33-35 in | 35-37 in | 37-39 in | 39-41 in | 41-43 in | 43-44 in | 44-45 in | 45-46 in | 46-48 in | 48-49 in |
Atlas Jammer is the knee-length cut. Q Race Pro — order true to waist.All measurements +-0.5 in
Boys’ Sizing
Boys’ swimwear.
Sized by age. Waist and hip are the primary measurements.
| Age | 04 | 06 | 08 | 10 | 12 | 14 |
|---|---|---|---|---|---|---|
| Waist | 22-23 in | 23-24 in | 24-25 in | 25-26 in | 26-27 in | 27-28 in |
| Hips | 23-24 in | 24-26 in | 26-28 in | 28-29 in | 29-31 in | 31-32 in |
Between sizes? Size up for room to grow.All measurements +-0.5 in
Apparel
Performance tee & rashguard.
Cut closer for compression — size up for a layered fit. Female, male and kids sizing below.
Apparel
FIG.A-01
FIG.A-01Female
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Bust - Chest | 31-33 in | 33-36 in | 36-39 in | 39-42 in | 42-45 in | 45-48 in |
| Waist | 24-27 in | 27-30 in | 30-33 in | 33-36 in | 36-39 in | 39-42 in |
| Hips | 33-35 in | 34-38 in | 38-41 in | 41-44 in | 44-47 in | 47-50 in |
| Arm Length | 22 3/4 in | 22 3/4 in | 23 in | 23 in | 23 1/4 in | 23 1/4 in |
Male
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Chest | 34-37 in | 37-40 in | 40-43 in | 43-46 in | 46-49 in | 49-52 in |
| Waist | 28-33 in | 33-36 in | 36-39 in | 39-42 in | 42-45 in | 45-48 in |
| Hips | 33-35 in | 35-38 in | 38-41 in | 41-44 in | 44-47 in | 47-50 in |
| Arm Length | 24 in | 24 1/4 in | 24 1/2 in | 24 3/4 in | 25 in | 25 1/4 in |
Kids · Short Sleeve
| Size | XS (4-6) | S (6-8) | M (8-10) | L (10-12) | XL (12-14) |
|---|---|---|---|---|---|
| Chest | 22-25 in | 25-27 in | 27-29 in | 29-30 in | 30-32 in |
| Waist | 22-24 in | 24-25 in | 25-26 in | 26-27 in | 27-28 in |
| Hips | 23-26 in | 26-28 in | 28-30 in | 30-32 in | 32-34 in |
| Arm Length | 15-16 1/2 in | 16 1/2-18 in | 18-19 1/2 in | 20-20 1/2 in | 20 1/2-21 1/2 in |
| Height (ft) | 3.4-4.1 ft | 4.1-4.4 ft | 4.4-4.6 ft | 4.6-4.9 ft | 4.9-5.1 ft |
| Weight (lb) | 35-51 | 51-64 | 64-77 | 77-95 | 95-108 |
Kids · Long Sleeve
| Size | XS (4-6) | S (6-8) | M (8-10) | L (10-12) | XL (12-14) |
|---|---|---|---|---|---|
| Chest | 21-23 in | 23-25 in | 25-27 in | 27-29 in | 29-31 in |
| Waist | 19-20 in | 20-21 in | 21-22 in | 22-23 in | 23-24 in |
| Hips | 22-24 in | 24-26 in | 26-28 in | 28-30 in | 30-32 in |
| Arm Length | 15-16 1/2 in | 16 1/2-18 in | 18-19 1/2 in | 20-20 1/2 in | 20 1/2-21 1/2 in |
| Height (ft) | 3.4-4.1 ft | 4.1-4.4 ft | 4.4-4.6 ft | 4.6-4.9 ft | 4.9-5.1 ft |
| Weight (lb) | 35-51 | 51-64 | 64-77 | 77-95 | 95-108 |
Rashguards — compression fit. Size up for a layered look.All measurements +-0.5 in
Accessories
Caps, towels, mesh bags.
Silicone caps one-size. Towels and mesh bags sized for swim-bag practicality.
Accessories
FIG.X-01
FIG.X-01| Item | Type | Dimensions | Material | Best for | Care |
|---|---|---|---|---|---|
| Cap Solid | Silicone | One size | 100% silicone | Training · racing | Rinse · air dry |
| Cap Waterpolo | Silicone set | One size | 100% silicone | Match play | Rinse · air dry |
| Towel Q | Microfiber | 31.5x57 in | 80% poly / 20% nylon | Pool deck | Machine wash cold |
| Mesh Bag | Drawstring | 27x20 in | Recycled nylon mesh | Full team kit | Hand wash |
Custom caps for teams — minimum 25 pcs.One-size · Unisex
Frequently asked
Still
unsure?
The questions our support team hears the most.
01
Why does Q feel tighter than my old suit?
Q fabric resists stretching to hold your shape and reduce drag. This can feel tight on land — that is the design. New to performance swimwear? Size up.
02
What if I am between two sizes?
For race and training suits, sizing down gives more compression. For Q Wave, size up for comfort. First-time Q customer? Go up.
03
Do Q suits run small?
Slightly — because the fabric does not stretch like looser swimwear. We always recommend measuring before ordering.
04
Are bikini tops and bottoms sold separately?
Yes — every top and bottom is sold individually so you can mix sizes, cuts and prints.
05
Can I return a swimsuit if it does not fit?
Yes — within 30 days, unworn, hygiene liner intact. One free exchange on first orders. Custom and team orders are non-exchangeable.
Personalised sizing
Need help? Chat
with Q.
with Q.