Men's Shirts + Men's Tanks
Measurement Note: Chest is measured at the widest part of the chest, just under arms and across shoulder blades holding tape firm and level. We do our best to keep the size chart as accurate as possible, however, strength athletes come in all shapes and sizes, so please keep in mind that all measurements are approximate and may slightly vary depending on your body composition.
Size
|
Chest (in)
|
Chest (cm)
|
S |
35 - 37 |
88.9 - 94.0 |
M |
38 - 41 |
96.5 - 104.1 |
L |
42 - 44 |
106.7 - 111.8 |
XL |
45 - 48 |
114.3 - 121.9 |
2XL |
49 - 52 |
124.5 - 132.1 |
3XL |
53 - 56 |
134.6 - 142.2 |
4XL |
57 - 60 |
144.8 - 152.4 |
Women's Shirts + Women's Crops
Measurement Note: Chest is measured at the widest part of the chest, just under arms and across shoulder blades holding tape firm and level. We do our best to keep the size chart as accurate as possible, however, strength athletes come in all shapes and sizes, so please keep in mind that all measurements are approximate and may slightly vary depending on your body composition.
Size
|
Chest (in)
|
Chest (cm)
|
XS |
30.5 - 31.5 |
77.5 - 80.0 |
S |
32.0 - 33.0 |
81.3 - 83.8 |
M |
33.5 - 35.0 |
85.1 - 88.9 |
L |
35.5 - 37.0 |
90.2 - 94.0 |
XL |
37.5 - 42.0 |
95.3 - 106.7 |
Unisex Hoodies
Measurement Note: Chest is measured at the widest part of the chest, just under arms and across shoulder blades holding tape firm and level. Our hoodies are designed for a relaxed fit, so be sure to leave extra room when measuring. We do our best to keep the size chart as accurate as possible, however, strength athletes come in all shapes and sizes, so please keep in mind that all measurements are approximate and may slightly vary depending on your body composition.
Size
|
Chest (in)
|
Chest (cm)
|
XS |
34 |
86.4 |
S |
40 |
101.6 |
M |
42 |
106.7 |
L |
45 |
114.3 |
XL |
49 |
124.5 |
2XL |
54 |
137.2 |
3XL |
58 |
147.3 |
4XL |
62 |
157.5 |
Belt Size Chart
Measurement Note: Measure around your waist with a plyable tape measure. Do not "suck in", measure in a relaxed state and pull the measuring tape snug against your body. Use this measurement to choose your correct belts size. Review the size chart carefully as you may be within the range of two sizes. Pick the size where your waist measurement will be in the middle of the range. For example, if your waist is 35 inches, you should choose the size Medium as it is in the middle of the range for the size Medium (this way you will have extra belt holes if you lose or gain weight). The sizing may vary depending on your body and whether you are planning to loose or gain weight.
Size
|
Waist (in)
|
Waist (cm)
|
XS |
22-31 |
55.9 - 78.7
|
S |
27 - 36 |
68.6 - 91.4 |
M |
31 - 40 |
78.7 - 101.6 |
L |
35 - 44 |
88.9 - 111.76 |
XL |
39 - 48 |
99.1 - 121.9 |
2XL |
43 - 52 |
109.2 - 132.1 |
3XL |
43 - 52 |
119.4 - 142.2 |
Men's Briefs
Measurement Note: If you are between sizes we recommend for you to size up if your legs/quads are larger.
Size
|
Weight (LBS)
|
Weight (KG)
|
S |
160 |
73 |
M |
175 |
79 |
L |
190 |
86 |
XL |
210 |
95 |
2XL |
230 |
104 |
3XL |
250 |
113 |
4XL |
270 |
122 |
5XL |
290 |
132 |
6XL |
310 |
143 |
Unisex Crew & Ankle Socks
Measurement Note: All measurements are approximate and may slightly vary. If you are between sizes or unsure what size to get, please email us at hello@a7.co.
Size
|
US MEN'S
|
US WOMEN'S
|
EURO Unisex |
UK Men's |
UK Women's |
S |
4.5 - 6 |
4 - 7 |
34 - 37 |
4 - 5.5 |
2 - 5.5 |
M |
6 - 12 |
7 - 13 |
37 - 47 |
5.5 - 11.5 |
5.5 - 11.5 |
L |
12 + |
13 + |
47 + |
11.5 + |
11.5 + |
Deadlift Socks
Measurement Note: All measurements are approximate and may slightly vary. If you are between sizes or unsure what size to get, please email us at hello@a7.co.
Size
|
US MEN'S
|
US WOMEN'S
|
EURO Unisex |
UK Men's |
UK Women's |
Calf Size (IN) |
Calf Size (CM) |
S |
4.5 - 6 |
4 - 7 |
34 - 37 |
4 - 5.5 |
2 - 5.5 |
<16 |
<40.5 |
M |
6 - 12 |
7 - 13 |
37 - 47 |
5.5 - 11.5 |
5.5 - 11.5 |
<19 |
<48 |
L |
12 + |
13 + |
47 + |
11.5 + |
11.5 + |
<22 |
<56 |
Unisex Defy Joggers
Measurement Note: All measurement are approximate and may slightly vary.
Size
|
Waist (in)
|
Inseam (IN)
|
Waist (CM) |
Inseam (CM) |
XS |
26 - 28 |
27.0 |
66 - 71 |
68.5 |
S |
28 - 30 |
27.8 |
71 - 76 |
70.5 |
M |
30 - 32 |
28.5 |
76 - 81 |
72.5 |
L |
32 - 34 |
29.2 |
81 - 87 |
74.5 |
XL |
34 - 36 |
30.1 |
87 - 92 |
76.5 |
2XL |
36 - 38 |
30.9 |
92 - 97 |
78.5 |
3XL |
38 - 40 |
31.7 |
97 - 102 |
80.5 |
4XL |
40 - 42 |
32.1 |
102 - 107 |
81.5 |
5XL |
42 - 44 |
32.5 |
107 - 112 |
82.5 |
Elbow Sleeves
Measurement Note: Measure the circumference of the lower bicep with your arm locked and muscles relaxed. All measurements are recommendations and may slightly vary.
Size
|
Bicep (IN)
|
Bicep (CM)
|
XS |
9.5 - 11.5 |
24.1 - 29.2 |
S |
10.5 - 13.0 |
26.7 - 33.0 |
M |
12.0 - 14.5 |
30.5 - 36.8 |
L |
13.5 - 16.0 |
34.3 - 40.6 |
XL |
15.0 - 18.0 |
38.1 - 45.7 |
2XL |
17.0 - 20.0 |
43.2 - 50.8 |
Unisex Regular Knee Sleeves

Unisex Stiff Knee Sleeves

Men's KWD Squat Shorts
Measurement Note: All measurements are approximate and may slightly vary. Please size up in these if your quads are larger than the max circumference.
Size
|
Waist (in)
|
Max Quad (cm)
|
Inseam(IN) |
Waist (cm) |
Max Quad Circ. (CM) |
Inseam (CM) |
S |
28 - 30 |
21 |
4.3 |
71 - 76 |
53.5 |
11 |
M |
30 - 32 |
23 |
4.5 |
76 - 81 |
58.5 |
11.5 |
L |
32 - 34 |
24 |
4.7 |
81 - 86 |
61.0 |
12 |
XL |
34 - 36 |
25 |
4.9 |
86 - 91 |
63.5 |
12.5 |
2XL |
36 - 38 |
26 |
5.1 |
91 - 97 |
66.0 |
13 |
3XL |
38 - 40 |
27 |
5.3 |
97 - 102 |
68.5 |
13.5 |
Men's Squat Shorts
Measurement Note: All measurements are approximate and may slightly vary.
Size
|
Waist (in)
|
Waist (cm)
|
Waist (cm) |
Inseam (cm) |
S |
28 - 30 |
6.7 |
71 - 76 |
17 |
M |
30 - 32 |
6.9 |
76 - 81 |
17.5 |
L |
32 - 34 |
7.1 |
81 - 86 |
18 |
XL |
34 - 36 |
7.3 |
86 - 91 |
18.5 |
2XL |
36 - 38 |
7.5 |
91 - 97 |
19 |
3XL |
38 - 40 |
7.7 |
97 - 102 |
19.5 |
360Go KWD Shorts
360Go Shorts

Women's XO Leggings
Measurement Note: All measurements are approximate and may slightly vary. Please keep in mind that leggings are stretchy and may fit a variety of body shapes.
Size
|
Waist (in)
|
Waist (cm)
|
Hip(in) |
Hip (cm) |
Inseam (CM) |
Inseam (CM) |
XS |
24 |
61 |
35 |
89 |
22.6 |
57.5 |
S |
26 |
66 |
37 |
94 |
23.4 |
59.5 |
M |
28 |
71 |
39 |
99 |
24.2 |
61.5 |
L |
30 |
76 |
41 |
104 |
25.0 |
63.5 |
XL |
32 |
81 |
43 |
109 |
25.8 |
65.5 |
2XL |
34 |
86 |
45 |
114.3 |
26.6 |
67.5 |
Women's XO Hew Leggings
Measurement Note: All measurements are approximate and may slightly vary. Please keep in mind that leggings are stretchy and may fit a variety of body shapes.
Size
|
Waist (in)
|
Waist (cm)
|
Hip(in) |
Hip (cm) |
XS |
24 |
61 |
35 |
89 |
S |
26 |
66 |
37 |
94 |
M |
28 |
71 |
39 |
99 |
L |
30 |
76 |
41 |
104 |
XL |
32 |
81 |
43 |
109 |
2XL |
34 |
86 |
45 |
114.3 |
Women's XO Hew Sports Crop
Measurement Note: All measurements are approximate and may slightly vary.
Cup Size/ Band Size
|
A
|
B
|
C |
D |
DD |
30 |
XS |
XS |
XS |
S |
S |
32 |
S |
S |
S |
M |
M |
34 |
M |
M |
M |
L |
L |
36 |
L |
L |
L |
XL |
XL |
38 |
XL |
XL |
XL |
2XL |
2XL |
40 |
2XL |
2XL |
2XL |
2XL |
|
Women's Flexure Joggers
Measurement Note: All measurements are approximate and may slightly vary. Please keep in mind that joggers full stretchy and may fit differently on various body shapes.
Size
|
Waist (in)
|
Waist (cm)
|
Inseam (in) |
Inseam (cm) |
XS |
26 - 28 |
66 - 71
|
26.2 |
66.5 |
S |
28 - 30 |
71 - 76
|
27.0 |
68.5 |
M |
30 - 32 |
76 - 81
|
27.8 |
70.5 |
L |
32 - 34 |
81 - 87
|
28.5 |
72.5 |
XL |
34 - 36 |
87 - 92
|
29.3 |
74.5 |
2XL |
36 - 38 |
92 - 97
|
30.1 |
76.5 |
3XL |
38 - 40 |
97 - 102
|
30.9 |
78.5 |
Unisex Lounge Act Joggers
Measurement Note: All measurements are approximate and may slightly vary. Lounge Act Jogger are not as stretchy as Defy or Moxie Joggers, so if you are comparing the fit, you may need to size up in these.
Size
|
Waist (in)
|
Waist (cm)
|
Length (in) |
Length (cm) |
XS |
26 - 28 |
66 - 71 |
37.0 |
94 |
S |
28 - 30 |
71 - 76 |
37.8 |
96 |
M |
30 - 32 |
76 - 81 |
38.6 |
98 |
L |
32 - 34 |
81 - 86 |
39.4 |
100 |
XL |
34 - 36 |
86 - 91 |
40.2 |
102 |
2XL |
36 - 38 |
91 - 97 |
40.6 |
103 |
3XL |
38 - 40 |
97 - 102 |
41.3 |
105 |
Unisex Lounge Act Shorts
Measurement Note: All measurements are approximate and may slightly vary. Lounge Act Shorts are not too stretchy so, so you may want to size up in these.
Size
|
Waist (in)
|
Waist (cm)
|
Length (in) |
Length (cm) |
XS |
26 - 28 |
66 - 71 |
18.1 |
46 |
S |
28 - 30 |
71 - 76 |
18.5 |
47 |
M |
30 - 32 |
76 - 81 |
18.9 |
48 |
L |
32 - 34 |
81 - 86 |
19.3 |
49 |
XL |
34 - 36 |
86 - 91 |
19.7 |
50 |
2XL |
36 - 38 |
91 - 97 |
20.1 |
51 |
3XL |
38 - 40 |
97 - 102 |
20.5 |
52 |
Unisex Moxie Joggers
Measurement Note: All measurements are approximate and may slightly vary.
Size
|
Waist (in)
|
Inseam (in)
|
Waist (cm) |
Inseam (cm) |
XS |
26 - 28 |
26.2 |
66 - 71 |
66.5 |
S |
28 - 30 |
27 |
71 - 76 |
68.5 |
M |
30 - 32 |
27.8 |
76 - 81 |
70.5 |
L |
32 - 34 |
28.5 |
81 - 87 |
72.5 |
XL |
34 - 36 |
29.3 |
87 - 92 |
74.5 |
2XL |
36 - 38 |
30.1 |
92 - 97 |
76.5 |
3XL |
38 - 40 |
30.5 |
97 - 102 |
77.5 |
4XL |
40 - 42 |
30.9 |
102 - 107 |
78.5 |
5XL |
42 - 44 |
31.3 |
107 - 112 |
79.5 |
Unisex Moxie Shorts

Unisex Moxie Crew Neck

Men's Compression Pants

Men's Compression Shorts

Unisex Singlet
Measurement Note: Singlets are made from stretchy material and fits various body shapes differently.
Size |
Weight (lbs) |
Weight (KG) |
2XS |
<100 |
<45 |
XS |
100 - 120 |
45 - 54 |
S |
120 - 140 |
54 - 64 |
M |
140 - 165 |
64 - 75 |
L |
165 - 195 |
75 - 88 |
XL |
195 - 230 |
88 - 104 |
2XL |
230 - 265 |
104 - 120 |
3XL |
265 - 305 |
120 - 138 |
4XL |
305 - 345 |
138 - 156 |
Unisex Slippers
Measurement Note: Measure your foot in the morning as feet typically swell during the day. Make sure to wear the type of socks you'll wear with your slippers. Distribute weight evenly before measuring .
Size
|
Length (in)
|
Length (cm)
|
XS |
7.8 |
19.8 |
S |
8.2 |
20.8 |
M |
8.6 |
21.8 |
L |
9 |
22.6 |
XL |
9.5 |
23.5 |
2XL |
10 |
25.3 |
3XL |
10.5 |
26.7 |
4XL |
10.9 |
27.8 |
5XL |
11.2 |
28.5 |
6XL |
11.7 |
29.7 |
7XL |
12.5 |
31.8 |
How to Measure:
1. Stand up straight on a hard surface with your heel against the wall (do not measure on carpet or other spongy surfaces).
2. Measure the heal-to-toe length with a measuring tape or ruler.
3. Be sure to measure to the longest point of the toes.
4. Compare your measurement to the size chart to get an accurate size.
Unisex Stone Sleeves
Measurement Note: Measure the widest part of your forearm, your wrist and the length between your wrist and forearm with a plyable tape measure. The sizing for the forearm overlaps, so please use length and wrist as a secondary way to determine the best size. All measurements are approximate and may slightly vary.
Size
|
Forearm (in)
|
Wrist (in)
|
Length (in) |
Forearm (cm) |
Wrist (cm) |
Length (cm) |
XS |
7.9 - 16.1 |
4.7 - 9.8 |
7.1 |
20 - 41 |
12 - 25 |
18 |
S |
8.3 - 12.6 |
5.1 - 10.2 |
7.5 |
21 - 42 |
13 - 26 |
19 |
M |
8.7 - 16.9 |
5.5 - 10.6 |
7.9 |
22 - 43 |
14 - 27 |
20 |
L |
9.1 - 17.3 |
5.9 - 11.0 |
8.0 |
23 - 44 |
15 - 28 |
21 |
XL |
9.4 - 17.7 |
6.3 - 11.4 |
8.6 |
24 - 45 |
16 - 29 |
22 |
2XL |
9.8 - 18.1 |
6.7 - 11.8 |
9.0 |
25.46 |
17 - 30 |
23 |
Women's Sports Bra
Measurement Note: Measurements are approximate and may vary depending on body metrics.
Size |
30 |
32 |
34 |
36 |
38 |
40 |
A |
XS |
S |
M |
L |
XL |
2XL |
B |
XS |
S |
M |
L |
XL |
2XL |
C |
XS |
S |
M |
L |
XL |
2XL |
D |
S |
M |
L |
XL |
2XL |
2XL |
DD |
S |
M |
L |
XL |
2XL |
2XL |