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The ERS 4000 will feature the original Energy Return technology system from the early 90's. There are many recognizable Reebok running Technologies over the years, but one of the most sought after and recognizable is ERS. Reebok Energy Return System features a soft , but very responsive Hytrel TPU tube from Dupont industries.
This tech first launched in the late 80’s in performance running and soon after became a staple of Reebok performance extending to training and basketball. The ERS 4000 comes equipped with the design lines and mark makers of the original ERS 4000. The design has been slightly adjusted to be more wearable for today's consumer
Very responsive Hytrel TPU tube from Dupont industries
Original details of the ERS 4000
TPU D-Rings
Retro nylon underlays on the vamp
Suede/synthetic overlays
INSP ERS 2000 midsole
50C IMEVA Compression molded midsole
Full rubber outsole provides traction and durability
Men's Shoes Size Chart
| EUR | CM | UK | USA Men |
|---|---|---|---|
| 34 | 22.5 cm | 2.5 | 3.5 |
| 34.5 | 23 cm | 3 | 4 |
| 35 | 23.3 cm | 3.5 | 4.5 |
| 36 | 23.5 cm | 4 | 5 |
| 36.5 | 23.6 cm | 4.5 | 5.5 |
| 37.5 | 24 cm | 5 | 6 |
| 38.5 | 24.5 cm | 5.5 | 6.5 |
| 39 | 25 cm | 6 | 7 |
| 40 | 25.5 cm | 6.5 | 7.5 |
| 40.5 | 26 cm | 7 | 8 |
| 41 | 26.5 cm | 7.5 | 8.5 |
| 42 | 27 cm | 8 | 9 |
| 42.5 | 27.5 cm | 8.5 | 9.5 |
| 43 | 28 cm | 9 | 10 |
| 44 | 28.5 cm | 9.5 | 10.5 |
| 44.5 | 29 cm | 10 | 11 |
| 45 | 29.5 cm | 10.5 | 11.5 |
| 45.5 | 30 cm | 11 | 12 |
| 46 | 30.5 cm | 11.5 | 12.5 |
| 47 | 31 cm | 12 | 13 |
| 48 | 31.5 cm | 12.5 | 13.5 |
| 48.5 | 32 cm | 13 | 14 |
| 49 | 32.5 cm | 13.5 | 14.5 |
| 50 | 33 cm | 14 | 15 |
Men's shirts & tops sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| XS | 31 - 33" | 27 - 29" | 32 - 34" |
| S | 34 - 37" | 30 - 32" | 35 - 37" |
| M | 37 - 40" | 32 - 35" | 37 - 40" |
| L | 40 - 44" | 35 - 39" | 40 - 44" |
| XL | 44 - 48" | 39 - 43" | 44 - 48" |
| 2XL | 48 - 52" | 43 - 47" | 48 - 51" |
| 3XL | 53 - 58" | 48 - 53" | 51 - 56" |
Men's pants & shorts sizing
| Product label | 1. WAIST | 2. HIP | 3. INSEAM |
|---|---|---|---|
| XS | 27 - 29" | 32 - 34" | 31.9" |
| S | 30 - 32" | 35 - 37" | 32.1" |
| M | 32 - 35" | 37 - 40" | 32.3" |
| L | 35 - 39" | 40 - 44" | 32.5" |
| XL | 39 - 43" | 44 - 48" | 32.7" |
| 2XL | 43 - 47" | 48 - 51" | 32.5" |
| 3XL | 48 - 53" | 51 - 56" | 32.3" |
Men's tracksuit sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP | 4. INSEAM |
|---|---|---|---|---|
| XS | 31 - 33" | 27 - 29" | 32 - 34" | 31.9" |
| S | 34 - 37" | 30 - 32" | 35 - 37" | 32.1" |
| M | 37 - 40" | 32 - 35" | 37 - 40" | 32.3" |
| L | 40 - 44" | 35 - 39" | 40 - 44" | 32.5" |
| XL | 44 - 48" | 39 - 43" | 44 - 48" | 32.7" |
| 2XL | 48 - 52" | 43 - 47" | 48 - 51" | 32.5" |
| 3XL | 53 - 58" | 48 - 53" | 51 - 56" | 32.3" |
Women's Shoes Size Chart
| EUR | CM | UK | USA Women |
|---|---|---|---|
| 35 | 22 cm | 2.5 | 5 |
| 35.5 | 22.5 cm | 3 | 5.5 |
| 36 | 23 cm | 3.5 | 6 |
| 37 | 23.5 cm | 4 | 65 |
| 37.5 | 24 cm | 4.5 | 7 |
| 38 | 24.5 cm | 5 | 7.5 |
| 38.5 | 25 cm | 5.5 | 8 |
| 39 | 25.5 cm | 6 | 8.5 |
| 40 | 26 cm | 6.5 | 9 |
| 40.5 | 26.5 cm | 7 | 9.5 |
| 41 | 27 cm | 7.5 | 10 |
| 42 | 27.5 cm | 8 | 10.5 |
| 42.5 | 28 cm | 8.5 | 11 |
| 44 | 29 cm | 9.5 | 12 |
Women's clothing sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| XXS | 73 - 76 cm | 57 - 60 cm | 82 - 85 cm |
| XS | 77 - 82 cm | 61 - 66 cm | 86 - 91 cm |
| S | 83 - 88 cm | 67 - 72 cm | 92 - 97 cm |
| M | 89 - 94 cm | 73 - 78 cm | 98 - 103 cm |
| L | 95 - 101 cm | 79 - 85 cm | 104 - 110 cm |
| XL | 102 - 109 cm | 86 - 94 cm | 111 - 117 cm |
| 2XL | 110 - 118 cm | 94 - 104 cm | 118 - 125 cm |
International conversion chart
| US | UK | DE | FR | IT | |
| XXS | 0 - 2 | 26 - 28 | 28 - 30 | 32 - 34 | |
| XS | 0 - 2 | 4 - 6 | 30 - 32 | 32 - 34 | 36 - 38 |
| S | 4 - 6 | 8 - 10 | 34 - 36 | 36 - 38 | 40 - 42 |
| M | 8 - 10 | 12 - 14 | 38 - 40 | 40 - 42 | 44 - 46 |
| L | 12 - 14 | 16 - 18 | 42 - 44 | 44 - 46 | 48 - 50 |
| XL | 16 - 18 | 20 - 22 | 46 - 48 | 48 - 50 | 52 - 54 |
| 2XL | 20 - 22 | 24 - 26 | 50 - 52 | 52 - 54 | 56 - 58 |
Women's sports bra sizing
| Bra Size | A | B | C |
|---|---|---|---|
| 65 | 2XS | XS | XS |
| 70 | XS | XS | S |
| 75 | S | S | M |
| 80 | M | M | L |
| 85 | L | L | L |
| 90 | L | XL | XL |
| 95 | XL | XL | XL |
| 100 | 2XL | 2XL | 2XL |
| Bra Size | D | E |
|---|---|---|
| 65 | XS | S |
| 70 | S | M |
| 75 | M | L |
| 80 | L | XL |
| 85 | XL | XL |
| 90 | XL | 2XL |
| 95 | 2XL | 2XL |
| 100 | 2XL | 2XL |
Women's pants & shorts sizing
| Product label | 1. WAIST | 2. HIP | 3. INSEAM |
|---|---|---|---|
| XXS 26 - 28 |
57 - 60 cm | 82 - 85 cm | 77.5 cm |
| XS 30 - 32 |
61 - 66 cm | 86 - 91 cm | 78 cm |
| S 34 - 36 |
67 - 72 cm | 92 - 97 cm | 78.5 cm |
| M 38 - 40 |
73 - 78 cm | 98 - 103 cm | 79 cm |
| L 42 - 44 |
79 - 85 cm | 104 - 110 cm | 79.5 cm |
| XL 46 - 48 |
86 - 94 cm | 111 - 117 cm | 80 cm |
| 2XL 50 - 52 |
94 - 104 cm | 118 - 125 cm | 80.5 cm |
International conversion chart
| Product label | US | UK | DE | FR | IT |
|---|---|---|---|---|---|
| XXS | 0 - 2 | 26 - 28 | 28 - 30 | 32 - 34 | |
| XS | 0 - 2 | 4 - 6 | 30 - 32 | 32 - 34 | 36 - 38 |
| S | 4 - 6 | 8 - 10 | 34 - 36 | 36 - 38 | 40 - 42 |
| M | 8 - 10 | 12 - 14 | 38 - 40 | 40 - 42 | 44 - 46 |
| L | 12 - 14 | 16 - 18 | 42 - 44 | 44 - 46 | 48 - 50 |
| XL | 16 - 18 | 20 - 22 | 46 - 48 | 48 - 50 | 52 - 54 |
| 2XL | 20 - 22 | 24 - 26 | 50 - 52 | 52 - 54 | 56 - 58 |
Women's tracksuit sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| XXS | 73 - 76 cm | 57 - 60 cm | 82 - 85 cm |
| XS | 77 - 82 cm | 61 - 66 cm | 86 - 91 cm |
| S | 83 - 88 cm | 67 - 72 cm | 92 - 97 cm |
| M | 89 - 94 cm | 73 - 78 cm | 98 - 103 cm |
| L | 95 - 101 cm | 79 - 85 cm | 104 - 110 cm |
| XL | 102 - 109 cm | 86 - 94 cm | 111 - 117 cm |
| 2XL | 110 - 118 cm | 94 - 104 cm | 118 - 125 cm |
International conversion chart
| US | UK | DE | FR | IT | |
| XXS | 0 - 2 | 26 - 28 | 28 - 30 | 32 - 34 | |
| XS | 0 - 2 | 4 - 6 | 30 - 32 | 32 - 34 | 36 - 38 |
| S | 4 - 6 | 8 - 10 | 34 - 36 | 36 - 38 | 40 - 42 |
| M | 8 - 10 | 12 - 14 | 38 - 40 | 40 - 42 | 44 - 46 |
| L | 12 - 14 | 16 - 18 | 42 - 44 | 44 - 46 | 48 - 50 |
| XL | 16 - 18 | 20 - 22 | 46 - 48 | 48 - 50 | 52 - 54 |
| 2XL | 20 - 22 | 24 - 26 | 50 - 52 | 52 - 54 | 56 - 58 |
Youth footwear sizing
| EUR | CM | UK | USA |
|---|---|---|---|
| 34 | 21 cm | 2.5 | 3 |
| 34.5 | 22.5 cm | 3 | 3.5 |
| 35 | 23 cm | 3.5 | 4 |
| 36 | 23.3 cm | 4 | 4.5 |
| 36.5 | 23.5 cm | 4.5 | 5 |
| 37 | 24 cm | 5 | 5.5 |
| 38 | 24.5 cm | 5.5 | 6 |
| 38.5 | 24.6 cm | 6 | 6.5 |
| 39 | 25 cm | 6.5 | 7 |
Boys clothing sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| 5-6 Years 116 |
58.5 - 60.5 cm | 55.5 - 56 cm | 62.5 - 64 cm |
| 6-7 Years 122 |
61 - 63 cm | 56.5 - 57 cm | 64.5 - 66 cm |
| 7-8 Years 128 |
63.5 - 64 cm | 57.5 - 59 cm | 66.5 - 68 cm |
| 8-9 Years 134 |
64.5 - 67.5 cm | 59.5 - 61.5 cm | 68.5 - 71 cm |
| 9-10 Years 140 |
68 - 71 cm | 62 - 63.5 cm | 71.5 - 74.5 cm |
| 10-11 Years 146 |
71.5 - 74.5 cm | 64 - 66 cm | 75 - 77.5 cm |
| 11-12 Years 152 |
75 - 78 cm | 66.5 - 68 cm | 78 - 81 cm |
| 12-13 Years 158 |
78.5 - 82 cm | 68.5 - 70.5 cm | 81.5 - 85 cm |
| 13-14 Years 164 |
82.5 - 86 cm | 71 - 73 cm | 85.5 - 89 cm |
| 14-15 Years 170 |
86.5 - 89 cm | 73.5 - 74.5 cm | 89.5 - 91.5 cm |
| 15-16 Years 176 |
89.5 - 91.5 cm | 75 - 76.5 cm | 92 - 94 cm |
Girls clothing sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| 5-6 Years 116 |
58.5 - 60.5 cm | 55.5 - 56 cm | 62.5 - 64 cm |
| 6-7 Years 122 |
61 - 63 cm | 56.5 - 57 cm | 64.5 - 66 cm |
| 7-8 Years 128 |
63.5 - 64 cm | 57.5 - 59 cm | 66.5 - 68 cm |
| 8-9 Years 134 |
65.5 - 68.5 cm | 58.5 - 60 cm | 70.5 - 73.5 cm |
| 9-10 Years 140 |
69 - 71.5 cm | 60.5 - 62 cm | 74 - 77 cm |
| 10-11 Years 146 |
72 - 75 cm | 62.5 - 63.5 cm | 77.5 - 80.5 cm |
| 11-12 Years 152 |
75.5 - 78 cm | 64 - 65.5 cm | 81 - 84 cm |
| 12-13 Years 158 |
78.5 - 80.5 cm | 66 - 66.5 cm | 84.5 - 86 cm |
| 13-14 Years 164 |
81 - 82.5 cm | 67 - 67.5 cm | 86.5 - 88 cm |
| 14-15 Years 170 |
83 - 87 cm | 68 - 70 cm | 88.5 - 92 cm |
Kids footwear sizing
| EUR | CM | UK | USA |
|---|---|---|---|
| 27 | 16.5 | 10K | 10.5 |
| 27.5 | 17 | 10.5K | 11 |
| 28 | 17.5 | 11K | 11.5 |
| 29 | 18 | 11.5K | 12 |
| 30 | 18.5 | 12K | 12.5 |
| 30.5 | 19 | 12.5K | 13 |
| 31 | 19.5 | 13K | 13.5 |
| 31.5 | 20 | 13.5K | 1 |
| 32 | 20.5 | 1 | 1.5 |
| 32.5 | 21 | 1.5 | 2 |
| 33 | 21.5 | 2 | 2.5 |
| 34 | 22 | 2.5 | 3 |
| 35 | 23 | 3.5 | 4 |
| 36 | 23.3 | 4 | 4.5 |
| 36.5 | 23.5 | 4.5 | 5 |
| 37 | 24 | 5 | 5.5 |
| 38 | 24.5 | 6 | 5.5 |
| 38.5 | 24.5 | 6 | 6.5 |
| 39 | 25 | 6.5 | 7 |
Kids clothing sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| 1-2 Years 92 |
51.5 - 52.5 cm | 50 - 50.5 cm | 52 - 53 cm |
| 2-3 Years 98 |
53 - 54.5 cm | 51 - 52.5 cm | 53.5 - 56 cm |
| 3-4 Years 104 |
55 - 56 cm | 53 - 54.5 cm | 56.5 - 60 cm |
| 4-5 Years 110 |
56.5 - 58 cm | 54.5 - 55 cm | 60.5 - 62 cm |
| 5-6 Years 116 |
58.5 - 60.5 cm | 55.5 - 56 cm | 62.5 - 64 cm |
| 6-7 Years 122 |
61 - 63 cm | 56.5 - 57 cm | 64.5 - 66 cm |
| 7-8 Years 128 |
63.5 - 64 cm | 57.5 - 59 cm | 66.5 - 68 cm |
Baby's & toddlers' footwear sizing
| EUR | CM | UK | USA |
|---|---|---|---|
| 15 | 6.5 cm | 0K | 0 |
| 16 | 7 cm | 0.5K | 1 |
| 16.5 | 7.5 cm | 1K | 1.5 |
| 17 | 8 cm | 1.5K | 2 |
| 18 | 8.5 cm | 2K | 2.5 |
| 18.5 | 9 cm | 2.5K | 3 |
| 19 | 9.5 cm | 3K | 3.5 |
| 19.5 | 10 cm | 3.5K | 4 |
| 20 | 10.5 cm | 4K | 4.5 |
| 21 | 11 cm | 4.5K | 5 |
| 21.5 | 11.5 cm | 5K | 5.5 |
| 22 | 12 cm | 5.5K | 6 |
| 22.5 | 12.5 cm | 6K | 6.5 |
| 23.5 | 13 cm | 6.5K | 7 |
| 24 | 13.5 cm | 7K | 7.5 |
| 24.5 | 14 cm | 7.5K | 8 |
| 25 | 14.5 cm | 8K | 8.5 |
| 25.5 | 15 cm | 8.5K | 9 |
| 26 | 15.5 cm | 9K | 9.5 |
| 26.5 | 16 cm | 9.5K | 10 |
| 27 | 16.5 cm | 10K | 10.5 |
| 27.5 | 17 cm | 10.5K | 11 |
| 28 | 17.5 cm | 11K | 11.5 |
Baby's & toddlers' clothing sizing
| Product label | 1. CHEST | 2. WAIST | 3. HIP |
|---|---|---|---|
| 0 Months 56 |
38.5 cm | 38.6 cm | 37 cm |
| 0-3 Months 62 |
43 cm | 43 cm | 42 cm |
| 3-6 Months 68 |
45.5 cm | 45 cm | 44.75 cm |
| 6 - 9 Months 74 |
47 cm | 46.5 cm | 47.5 cm |
| 9 - 12 Months 80 |
49.5 cm | 48.75 cm | 50 cm |
| 12 - 18 Months 86 |
51 cm | 49.75 cm | 51.5 cm |
| 1-2 Years 92 |
52.5 cm | 50.5 cm | 53 cm |
| 2-3 Years 98 |
54.5 cm | 52.5 cm | 56 cm |
| 3-4 Years 104 |
56 cm | 54.5 cm | 60 cm |
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