Size Guide

Size Guide

Our garments are measured flat, in centimetres and inches. The most accurate way to choose a size is to measure a garment you already own and compare it with our garment measurements — not your body measurements.

How to measure

  1. Chest — button the garment and lay it flat. Measure straight across from one underarm seam to the other, then double it.
  2. Body Length — lay flat and measure from the highest point of the shoulder seam straight down to the bottom hem.
  3. Shoulder — measure across the back from one shoulder seam to the other.
  4. Sleeve — measure from the shoulder seam to the end of the cuff.
  5. Waist — for bottoms, lay flat and measure across the waistband, then double it.
  6. Inseam — measure from the crotch seam down the inside leg to the hem.

Note: all measurements are taken flat. Garment measurements may vary by ±1–2 cm (0.4–0.8 in) due to the manufacturing process.

Garment measurements (flat)

T-Shirts

Size Chest Body Length Shoulder Sleeve
cm in cm in cm in cm in
S 96 38.0 66 26.0 42 16.5 20 8.0
M 100 39.5 68 27.0 44 17.5 21 8.5
L 104 41.0 70 27.5 46 18.0 22 8.5
XL 108 42.5 72 28.5 48 19.0 23 9.0
2XL 112 44.0 74 29.0 50 19.5 24 9.5
3XL 116 45.5 76 30.0 52 20.5 25 10.0
4XL 120 47.0 78 30.5 54 21.5 26 10.0

Polo Shirts

Size Chest Body Length Shoulder Sleeve
cm in cm in cm in cm in
S 98 38.5 68 27.0 43 17.0 20 8.0
M 102 40.0 70 27.5 45 17.5 21 8.5
L 106 41.5 72 28.5 47 18.5 22 8.5
XL 110 43.5 74 29.0 49 19.5 23 9.0
2XL 114 45.0 76 30.0 51 20.0 24 9.5
3XL 118 46.5 78 30.5 53 21.0 25 10.0
4XL 122 48.0 80 31.5 55 21.5 26 10.0

Hoodies & Sweatshirts

Size Chest Body Length Shoulder Sleeve
cm in cm in cm in cm in
S 104 41.0 66 26.0 46 18.0 59 23.0
M 108 42.5 68 27.0 48 19.0 60 23.5
L 112 44.0 70 27.5 50 19.5 61 24.0
XL 116 45.5 72 28.5 52 20.5 62 24.5
2XL 120 47.0 74 29.0 54 21.5 63 25.0
3XL 124 49.0 76 30.0 56 22.0 64 25.0
4XL 128 50.5 78 30.5 58 23.0 65 25.5

Vests

Size Chest Body Length Shoulder
cm in cm in cm in
S 104 41.0 64 25.0 40 15.5
M 108 42.5 66 26.0 42 16.5
L 112 44.0 68 27.0 44 17.5
XL 116 45.5 70 27.5 46 18.0
2XL 120 47.0 72 28.5 48 19.0
3XL 124 49.0 74 29.0 50 19.5
4XL 128 50.5 76 30.0 52 20.5

Outerwear (Jackets)

Size Chest Body Length Shoulder Sleeve
cm in cm in cm in cm in
S 110 43.5 68 27.0 45 17.5 61 24.0
M 114 45.0 70 27.5 47 18.5 62 24.5
L 118 46.5 72 28.5 49 19.5 63 25.0
XL 122 48.0 74 29.0 51 20.0 64 25.0
2XL 126 49.5 76 30.0 53 21.0 65 25.5
3XL 130 51.0 78 30.5 55 21.5 66 26.0
4XL 134 53.0 80 31.5 57 22.5 67 26.5

Sun Protection

Size Chest Body Length Sleeve
cm in cm in cm in
S 102 40.0 64 25.0 58 23.0
M 106 41.5 66 26.0 59 23.0
L 110 43.5 68 27.0 60 23.5
XL 114 45.0 70 27.5 61 24.0
2XL 118 46.5 72 28.5 62 24.5
3XL 122 48.0 74 29.0 63 25.0
4XL 126 49.5 76 30.0 64 25.0

Down Jackets

Size Chest Body Length Shoulder Sleeve
cm in cm in cm in cm in
S 112 44.0 68 27.0 45 17.5 61 24.0
M 116 45.5 70 27.5 47 18.5 62 24.5
L 120 47.0 72 28.5 49 19.5 63 25.0
XL 124 49.0 74 29.0 51 20.0 64 25.0
2XL 128 50.5 76 30.0 53 21.0 65 25.5
3XL 132 52.0 78 30.5 55 21.5 66 26.0
4XL 136 53.5 80 31.5 57 22.5 67 26.5

Bottoms (Pants / Shorts)

Size Waist (relaxed) Hip Inseam Outseam
cm in cm in cm in cm in
S 72 28.5 96 38.0 74 29.0 100 39.5
M 77 30.5 100 39.5 75 29.5 102 40.0
L 82 32.5 104 41.0 76 30.0 104 41.0
XL 88 34.5 108 42.5 77 30.5 106 41.5
2XL 94 37.0 112 44.0 78 30.5 108 42.5
3XL 100 39.5 116 45.5 79 31.0 110 43.5
4XL 106 41.5 120 47.0 80 31.5 112 44.0

Body measurements (for reference)

Use these only as a rough guide. If you are between two sizes, or plan to wear a layer underneath, choose the larger size.

Size Chest Waist Hip Height Weight
cm in cm in cm in cm in
S 86–91 34.0–36.0 71–76 28.0–30.0 86–91 34.0–36.0 165–170 65.0–67.0 55–62 kg
M 91–97 36.0–38.0 76–81 30.0–32.0 91–97 36.0–38.0 170–175 67.0–69.0 62–70 kg
L 97–102 38.0–40.0 81–86 32.0–34.0 97–102 38.0–40.0 175–180 69.0–71.0 70–78 kg
XL 102–107 40.0–42.0 86–94 34.0–37.0 102–107 40.0–42.0 178–183 70.0–72.0 78–86 kg
2XL 107–114 42.0–45.0 94–102 37.0–40.0 107–114 42.0–45.0 180–185 71.0–73.0 86–95 kg
3XL 114–122 45.0–48.0 102–110 40.0–43.5 114–122 45.0–48.0 183–188 72.0–74.0 95–105 kg
4XL 122–130 48.0–51.0 110–118 43.5–46.5 122–130 48.0–51.0 185–190 73.0–75.0 105–115 kg

Fit notes by category

Category Fit Advice
T-Shirts Regular True to size for a standard fit. Choose one size up for a relaxed look.
Polo Shirts Regular, slightly tapered True to size. Cut slimmer through the waist than a typical US polo.
Hoodies & Sweatshirts Relaxed Designed with room for layering. Take your normal size.
Vests Regular Cut to fit over a shirt or thin sweater. Size up only if you layer thick knitwear.
Outerwear (Jackets) Athletic Size up one if you plan to wear a hoodie or fleece underneath. The 3-in-1 styles include a removable liner that already adds bulk.
Sun Protection Loose Intentionally relaxed for airflow. Take your normal size.
Down Jackets Regular Size up one for a roomier fit over layers. Down compresses, so a snug fit is not necessarily warmer.
Bottoms Regular / Straight Waist is given flat — double it for the full circumference. Many styles have a partly elasticated waist that stretches 4–6 cm.

Between two sizes?

  • Want a fitted look — choose the smaller size.
  • Want comfort, or plan to layer — choose the larger size.
  • Outerwear — when in doubt, always size up.
  • Still unsure? Email support@syvimir.com with your height, weight, and the size you normally buy in other brands. We will tell you which size to order — and if we get it wrong, returns are free within 30 days when the item is defective or misdescribed.

Care instructions

  • Machine wash cold (30°C / 86°F), inside out, with similar colours.
  • Do not bleach. Do not dry clean unless the care label permits it.
  • Tumble dry low or hang dry. High heat causes shrinkage and damages elastic fibres.
  • Do not iron directly over prints, logos, or reflective trim.
  • For down-filled items, tumble dry on low with dryer balls to restore loft.