size

Size Guide
Est. 1981

Merrell

Outdoor Footwear & Apparel Size Guide

Men's Size Chart

Official footwear conversions and apparel body measurements.

Men's Shoes — US / UK / Euro / Japan

US UK Euro JPN (cm)
7 6.5 40 25
7.5 7 41 25.5
8 7.5 41.5 26
8.5 8 42 26.5
9 8.5 43 27
9.5 9 43.5 27.5
10 9.5 44 28
10.5 10 44.5 28.5
11 10.5 45 29
11.5 11 46 29.5
12 11.5 46.5 30
12.5 12 47 30.5
13 12.5 48 31
14 13 49 32
15 14 50 33
16 15 51 34

Men's Sandals — US / UK / Euro / Japan

US UK Euro JPN (cm)
7 6 40 25
8 7 41 26
9 8 42 27
10 9 43 28
11 10 44 29
12 11 45 30
13 12 46 31
14 13 47 32
15 14 48 33
16 15 49 34

Sandals are offered in whole sizes only. If you wear a half size, size down to the nearest whole size for an open-heel fit.

Men's Clothing — Body Measurements

Measurement S M L XL XXL
Neck 14.5–15 in37–38 cm 15.5–16 in39–40 cm 16.5–17 in42–43 cm 17.5–18 in45–46 cm 18–18.5 in46–47 cm
Chest 36–38 in91–96 cm 39–41 in99–104 cm 42–44 in107–112 cm 45–47 in114–119 cm 48–51 in122–130 cm
Sleeve 33–33.5 in84–85 cm 34–34.5 in86–88 cm 35–35.5 in89–90 cm 36–36.5 in91–92 cm 37–37.5 in94–95 cm
Waist 28–29 in71–74 cm 30–32 in76–81 cm 34–36 in86–91 cm 38–40 in96–102 cm 41–42 in104–107 cm
Inseam 31 in79 cm 32 in81 cm 33 in84 cm 34 in86 cm 34 in86 cm

Women's Size Chart

Official footwear conversions and apparel body measurements.

Women's Shoes — US / UK / Euro / Japan

US UK Euro JPN (cm)
5 2.5 35 22
5.5 3 35.5 22.5
6 3.5 36 23
6.5 4 37 23.5
7 4.5 37.5 24
7.5 5 38 24.5
8 5.5 38.5 25
8.5 6 39 25.5
9 6.5 40 26
9.5 7 40.5 26.5
10 7.5 41 27
10.5 8 42 27.5
11 8.5 42.5 28
11.5 9 43 28.5

Women's Sandals — US / UK / Euro / Japan

US UK Euro JPN (cm)
5 3 36 22
6 4 37 23
7 5 38 24
8 6 39 25
9 7 40 26
10 8 41 27
11 9 42 28

Sandals are offered in whole sizes only. If you wear a half size, size down to the nearest whole size for an open-heel fit.

Women's Clothing — Body Measurements

Measurement XS S M L XL XXL
UK Size 6 8–10 12–14 16–18 20 –
US Size 2 4–6 8–10 12–14 16 18
Chest / Bust 32–33 in81–84 cm 34–35 in86–89 cm 36–37 in91–94 cm 38–40 in96–102 cm 41–43 in104–109 cm 44–46 in112–117 cm
Sleeve 29–29.5 in74–75 cm 30–30.5 in76–77 cm 31–31.5 in79–80 cm 32–32.5 in81–82 cm 33–33.5 in84–85 cm 34–34.5 in86–88 cm
Waist 25–26 in64–66 cm 27–28 in69–71 cm 29–30 in74–76 cm 31–33 in79–84 cm 37–39 in94–99 cm 37–39 in94–99 cm
Hip 34–35 in86–89 cm 36–37 in91–94 cm 38–39 in96–99 cm 40–42 in102–107 cm 43–45 in109–114 cm 43–45 in109–114 cm
Inseam 31 in79 cm 32 in81 cm 32 in81 cm 32 in81 cm 33 in84 cm 34 in86 cm

Kids' Size Chart

Little Kid and Big Kid footwear conversions.

Kids' Shoes — US / UK / Euro

US UK Euro Stage
10 9 28 Little Kid
11 10 29 Little Kid
12 11 30 Little Kid
13 12 31 Little Kid
1 13 32 Little Kid
2 1 33 Little Kid
3 2 34 Big Kid
4 3 35 Big Kid
5 4 36 Big Kid
6 5 37 Big Kid
7 6 38 Big Kid

Sizing Tips for Kids

  • Leave growing room. Aim for about a thumb's width (roughly 0.5–1 cm) between the longest toe and the end of the shoe.
  • Measure both feet. Kids' feet grow in spurts and are often different sizes — always fit the larger foot.
  • Re-check every season. Young feet can grow a half size or more in a few months, so re-measure before each new pair.
  • Size restart. Kids' sizing runs independently of adult sizes — a Big Kid 7 is smaller than a Men's 7.

How to Measure

Follow these steps for accurate foot and body measurements, then match them to the charts.

Foot Length

  1. Place a sheet of paper against a wall. Stand on it with your heel touching the wall and your weight evenly distributed on both feet.
  2. Mark your longest toe. Have someone mark the tip of your longest toe on the paper (or lean forward and mark it yourself).
  3. Measure the distance. Use a ruler or tape measure to find the distance from the edge of the paper (heel line) to the toe mark, in centimeters.
  4. Match to the chart. Use the JPN (cm) column in the shoe tables to find your size. Measure both feet and fit the larger one.

Foot Width

  1. Trace or wrap. With your foot flat on paper, trace around it — or wrap a soft tape measure around the widest part of your foot (the ball).
  2. Measure at the widest point. For a tracing, measure straight across the widest part of the outline; for the tape method, read the circumference.
  3. Check the width category. Compare your result against the Fit & Width Guide to find your width mark, from Narrowest (N) to Widest (4E).

Body Measurements (Apparel)

  1. Bust / Chest. With arms relaxed at your sides, measure under your arms around the fullest part of your bust/chest.
  2. Waist. While keeping the tape comfortably loose, measure around your natural waistline — the smallest part of your waist.
  3. Hips. Standing with legs together, measure around the fullest part of your hips.
  4. Inseam. Measure the inside length of your leg from the crotch to the bottom of your ankle.
  5. Neck & Sleeve. For neck, measure around the base where a collar sits. For sleeve length, start at the center back of the neck, pass over the shoulder and elbow, and end at the wrist.

Measuring Tips

  • Measure feet at the end of the day, when they are at their largest.
  • Wear the socks you plan to pair with the shoes while measuring.
  • Stand while measuring — seated measurements underestimate foot length.
  • If you fall between sizes, choose the larger size for comfort on the trail.

Fit & Width Guide

How the width system works, plus unisex sizing conversions.

Width System

Category Width Marks
Narrowest N
Narrow 2A · B
Medium D · M
Wide E · W
Extra Wide EW · 2E · 2W
Extra-Extra Wide 3E
Widest 4E
N Narrowest 2A/B Narrow D/M Medium E/W Wide 2E/EW Extra Wide 4E Widest

Width availability varies by style — check the individual product for the widths offered.

Unisex Sizing

Unisex sizing runs as men's sizing. Women should select a size and a half smaller than their normal US Women's sizing — for example, Unisex Size 7 equals Men's Size 7 and Women's Size 8.5.
US Men's (Unisex) US Women's Euro UK CM
3.5 5 36.5 3 21.5
4 5.5 37 3.5 22
4.5 6 37.5 4 22.5
5 6.5 38 4.5 23
5.5 7 38.5 5 23.5
6 7.5 39 5.5 24
6.5 8 39.5 6 24.5
7 8.5 40 6.5 25
7.5 9 41 7 25.5
8 9.5 41.5 7.5 26
8.5 10 42 8 26.5
9 10.5 43 8.5 27
9.5 11 43.5 9 27.5
10 11.5 44 9.5 28
10.5 12 44.5 10 28.5
11 12.5 45 10.5 29
11.5 13 46 11 29.5
12 13.5 46.5 11.5 30
12.5 14 47 12 30.5
13 14.5 48 12.5 31
14 15.5 49 13 32
15 16.5 50 14 33
16 17.5 51 15 34

Fit Guidance

  • True to size. Start with your regular US size — the charts above reflect the brand's official conversions.
  • Hiking socks count. Try shoes on with the socks you'll actually wear on the trail; thicker socks may call for a half size up.
  • Toes on descents. Allow a little toe room — your feet push forward on downhill stretches, and jammed toes are the most common fit complaint.
  • Heel hold. A properly fitted shoe locks the heel in place without pinching across the forefoot.
  • Break-in. Leather and suede uppers soften with wear, but the out-of-the-box length should already feel right.

Best Sellers

Encore Breeze 5 Wide Width
$36.00
$120.00
$36.00
Jungle Moc Nubuck
$36.00
$120.00
$36.00
Speed Strike 2 Mid Waterproof
$39.00
$130.00
$39.00
Nova 4 Wide Width
$42.00
$140.00
$42.00
Encore Ice 5
$45.00
$150.00
$45.00
Nova 4 Waterproof Wide Width
$48.00
$160.00
$48.00
Agility Peak 6 Wide Width
$48.00
$160.00
$48.00
Nova 4 Waterproof
$48.00
$160.00
$48.00