COMFORTBASE™ Work Insole

$25.00

$7.50

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Color: Black/Orange

Size: 4

Size Guide · Merrell

Size Guide

Merrell footwear and apparel are built for the outdoors. Use the charts below to find your best fit. If you are between sizes, we recommend sizing up for a more comfortable fit, especially with thick socks.

Men’s Footwear

Measure your foot length while standing, heel against a wall. Use the larger foot measurement.

US Size	UK Size	EU Size	JP (cm)	Foot Length (in)
7	6	40	25.0	9.6"
7.5	6.5	40.5	25.4	9.8"
8	7	41	25.8	9.9"
8.5	7.5	41.5	26.2	10.1"
9	8	42	26.7	10.3"
9.5	8.5	42.5	27.1	10.4"
10	9	43	27.5	10.6"
10.5	9.5	44	28.0	10.8"
11	10	44.5	28.4	10.9"
11.5	10.5	45	28.8	11.1"
12	11	46	29.2	11.3"
13	12	47	30.0	11.6"
14	13	48	30.9	12.0"
15	14	49.5	31.8	12.4"

Women’s Footwear

Women’s styles generally run true to size. If you have a wide foot, consider sizing up.

US Size	UK Size	EU Size	JP (cm)	Foot Length (in)
5	2.5	35	22.0	8.5"
5.5	3	35.5	22.4	8.7"
6	3.5	36	22.9	8.8"
6.5	4	36.5	23.3	9.0"
7	4.5	37	23.7	9.1"
7.5	5	38	24.1	9.3"
8	5.5	38.5	24.6	9.4"
8.5	6	39	25.0	9.6"
9	6.5	39.5	25.4	9.8"
9.5	7	40	25.8	9.9"
10	7.5	40.5	26.2	10.1"
10.5	8	41	26.7	10.3"
11	8.5	41.5	27.1	10.4"
12	9.5	42.5	28.0	10.8"

Kids’ Footwear

Children’s sizes are based on foot length. Allow roughly a thumb’s width of room for growth.

US Size	UK Size	EU Size	JP (cm)	Age (approx.)
10C	9C	27	16.5	3 – 4 yrs
11C	10C	28	17.3	4 – 5 yrs
12C	11C	29.5	18.1	5 – 6 yrs
13C	12C	31	19.0	6 – 7 yrs
1Y	13C	32	19.8	7 – 8 yrs
2Y	1Y	33.5	20.6	8 – 9 yrs
3Y	2Y	35	21.5	9 – 10 yrs
4Y	3Y	36	22.3	10 – 11 yrs
5Y	4Y	37.5	23.1	11 – 12 yrs
6Y	5Y	38.5	24.0	12 – 13 yrs

Men’s Apparel

Measure your chest at the fullest point and your waist at the narrowest point.

Size	Chest (in)	Waist (in)	Hip (in)	Sleeve (in)
XS	33 – 35"	27 – 29"	33 – 35"	31.5"
S	35 – 38"	29 – 32"	35 – 38"	32.5"
M	38 – 41"	32 – 35"	38 – 41"	33.5"
L	41 – 44"	35 – 38"	41 – 44"	34.5"
XL	44 – 47"	38 – 41"	44 – 47"	35.5"
2XL	47 – 50"	41 – 44"	47 – 50"	36.5"
3XL	50 – 53"	44 – 47"	50 – 53"	37.5"

Women’s Apparel

Measure your bust at the fullest point, waist at the narrowest, and hips at the fullest.

Size	Bust (in)	Waist (in)	Hip (in)	Sleeve (in)
XS	31 – 33"	24 – 26"	34 – 36"	29.5"
S	33 – 35"	26 – 28"	36 – 38"	30.0"
M	35 – 37"	28 – 30"	38 – 40"	30.5"
L	37 – 40"	30 – 33"	40 – 43"	31.0"
XL	40 – 43"	33 – 36"	43 – 46"	31.5"
2XL	43 – 46"	36 – 39"	46 – 49"	32.0"

Width & Fit Guide

Medium (M / D)

Our standard width. Fits most feet comfortably and is the default for most Merrell styles.

Standard Fit

Wide (W / 2E)

Extra room in the forefoot and instep. Ideal for wider feet, high arches, or thicker socks.

Wide Fit

Barefoot & Wide Toe

Select styles feature a foot-shaped toe box that lets toes splay naturally for better balance.

Natural Fit

How to Measure Your Feet

Prepare

Stand on a piece of paper with your heel against a wall. Wear the socks you plan to wear with your new footwear.

Mark & Measure

Mark the tip of your longest toe and the back of your heel. Measure the distance between the two marks.

Compare

Match your foot length in inches or centimeters to the chart above. If between sizes, size up.

Check Width

Measure the widest part of your foot. Use the Width & Fit Guide to select the best fit for your foot shape.

Fit Note: Merrell footwear is designed for trail and outdoor performance. Many hiking styles run slightly roomy to accommodate thicker socks and foot swelling during long hikes.

Measure your feet at the end of the day, when they are at their largest. Always measure both feet and use the larger measurement for the best fit.

If you are still unsure about your size, our customer service team is happy to help. Contact us for personalized fit recommendations.

Quantity

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