Size Guide | RIIMB

RIIMB Size Guide

Note: Every product on our store has its own size chart displayed directly above the Add to Cart button on the product page. The charts below are a reference in case you need them before visiting a specific product page.

All measurements are in inches and centimeters unless stated otherwise. Designed by RIIMB — built for the racing lifestyle.

T-SHIRTS & TOPS

Men's / Unisex T-Shirts

Runs true to size. Size up for an oversized look. Available: S – 5XL

Size Chest (in) Length (in) Sleeve (in)
S 34–36 28 8
M 38–40 29 8.5
L 42–44 30 9
XL 46–48 31 9.5
2XL 50–52 32 10
3XL 54–56 33 10.5
4XL 58–60 34 11
5XL 62–64 35 11.5

Women's T-Shirts

Fitted women's cut. Available: S – 5XL

Size Chest (in) Length (in)
S 33–35 25.5
M 35–37 26
L 38–40 27
XL 41–43 27.5
2XL 44–46 28
3XL 48–50 29
4XL 52–54 30
5XL 56–58 31

Gildan Women's T-Shirts

Classic Gildan women's fit. Available: S – 3XL

Size Chest (in) Length (in)
S 33–35 25
M 35–37 26
L 38–40 27
XL 41–43 27.5
2XL 44–46 28
3XL 48–50 29

Youth T-Shirts

Available: XS – XL

Size Age (approx) Chest (in)
XS 4–6 26–28
S 6–8 28–30
M 8–10 30–32
L 10–12 32–34
XL 12–14 34–36

Crop Tops

Available: XS – 2XL

Size Chest (in) Length (in)
XS 31–33 14
S 33–35 15
M 35–37 15.5
L 38–40 16
XL 41–43 16.5
2XL 44–46 17

Racerback Tanks — Flowy, Triblend & Ideal

Available: XS – 2XL

Size Chest (in) Length (in)
XS 31–33 25
S 33–35 26
M 35–37 27
L 38–40 28
XL 41–43 29
2XL 44–46 30

Ladies' Performance Racerback Tank

Available: XS – 4XL

Size Chest (in) Length (in)
XS 31–33 25
S 33–35 26
M 35–37 27
L 38–40 28
XL 41–43 29
2XL 44–46 30
3XL 48–50 31
4XL 52–54 32

LONG SLEEVES, POLOS & PERFORMANCE

Men's Long Sleeve Performance Tee

Available: XS – 4XL

Size Chest (in) Length (in)
XS 32–34 27
S 34–36 28
M 38–40 29
L 42–44 30
XL 46–48 31
2XL 50–52 32
3XL 54–56 33
4XL 58–60 34

Long Sleeve Moisture-Wicking Tee

Available: S – 3XL

Size Chest (in) Length (in)
S 34–36 28
M 38–40 29
L 42–44 30
XL 46–48 31
2XL 50–52 32
3XL 54–56 33

Long Sleeve V-Neck Tee

Available: XS – 4XL

Size Chest (in) Length (in)
XS 32–34 27
S 34–36 28
M 38–40 29
L 42–44 30
XL 46–48 31
2XL 50–52 32
3XL 54–56 33
4XL 58–60 34

Men's EZCotton Long Sleeve Polo

Available: XS – 4XL

Size Chest (in) Length (in)
XS 32–34 27
S 34–36 28
M 38–40 29
L 42–44 30
XL 46–48 31
2XL 50–52 32
3XL 54–56 33
4XL 58–60 34

Jersey Polo Shirts

Available: S – 5XL

Size Chest (in) Length (in)
S 34–36 28
M 38–40 29
L 42–44 30
XL 46–48 31
2XL 50–52 32
3XL 54–56 33
4XL 58–60 34
5XL 62–64 35

HOODIES, SWEATSHIRTS & JACKETS

Pullover Hoodies & Sweatshirts

Relaxed fit. Size down for snug, size up for streetwear look. Available: S – 5XL

Size Chest (in) Length (in) Sleeve (in)
S 36–38 26 24.5
M 39–41 27 25.5
L 42–44 28 26.5
XL 46–48 29 27.5
2XL 50–52 30 28.5
3XL 54–56 31 29.5
4XL 58–60 32 30.5
5XL 62–64 33 31.5

All Over Print Zip-Up Hoodies

Unisex zip-up. Available: S – 4XL

Size Chest (in) Length (in) Sleeve (in)
S 36–38 26 24.5
M 39–41 27 25.5
L 42–44 28 26.5
XL 46–48 29 27.5
2XL 50–52 30 28.5
3XL 54–56 31 29.5
4XL 58–60 32 30.5

Crop Top Hoodies

Available: XXS – 2XL

Size Chest (in) Length (in)
XXS 30–32 17
XS 32–34 18
S 34–36 19
M 37–39 20
L 40–42 21
XL 43–45 22
2XL 46–48 23

Men's Ugly Sweaters

Available: S – 4XL

Size Chest (in) Length (in)
S 36–38 26
M 39–41 27
L 42–44 28
XL 46–48 29
2XL 50–52 30
3XL 54–56 31
4XL 58–60 32

Women's Ugly Sweaters

Available: XS – 4XL

Size Chest (in) Length (in)
XS 31–33 24.5
S 33–35 25.5
M 35–37 26
L 38–40 27
XL 41–43 27.5
2XL 44–46 28
3XL 48–50 29
4XL 52–54 30

Sherpa Jackets — Style A (Most styles, up to 3XL)

Slightly fitted. Size up if between sizes or layering. Available: XXS – 3XL

US Size Length (in) Length (cm) Bust (in) Bust (cm) Shoulder (in) Shoulder (cm) Sleeve (in) Sleeve (cm)
S 26 67 40 102 17 42 26 67
M 27 70 44 112 18 45 27 68
L 28 72 48 122 19 48 27 69
XL 29 75 52 132 20 51 28 70
2XL 30 76 56 142 21 54 28 71
3XL 31 79 60 152 22 57 28 71

Note: Sherpa jackets run slightly slim — when in doubt, size up.

Sherpa Jackets — Style B (Extended sizing, up to 5XL)

Available: S – 5XL

US Size Length (in) Length (cm) Bust (in) Bust (cm) Shoulder (in) Shoulder (cm) Sleeve (in) Sleeve (cm)
S 26 67 40 102 17 42 26 67
M 27 70 44 112 18 45 27 68
L 28 72 48 122 19 48 27 69
XL 29 75 52 132 20 51 28 70
2XL 30 76 56 142 21 54 28 71
3XL 31 79 60 152 22 57 28 71
4XL 32 82 64 162 24 60 28 72
5XL 33 85 68 172 25 63 29 73

Padded Hooded Jackets

Available: S – 2XL

Size Chest (in) Length (in)
S 36–38 26
M 39–41 27
L 42–44 28
XL 46–48 29
2XL 50–52 30

Men's Bomber Jackets

Available: S – 4XL

Size Chest (in) Length (in) Sleeve (in)
S 36–38 25 24
M 39–41 26 25
L 42–44 27 26
XL 46–48 28 27
2XL 50–52 29 28
3XL 54–56 30 29
4XL 58–60 31 30

Women's Bomber Jackets

Available: S – 4XL

Size Chest (in) Length (in) Sleeve (in)
S 34–36 24 23
M 36–38 25 24
L 39–41 26 25
XL 42–44 27 26
2XL 46–48 28 27
3XL 50–52 29 28
4XL 54–56 30 29

DRESSES & BOTTOMS

Hoodie Dresses

Available: XS – 4XL

Size Bust (in) Length (in)
XS 31–33 34
S 33–35 35
M 35–37 36
L 38–40 37
XL 41–43 38
2XL 44–46 39
3XL 48–50 40
4XL 52–54 41

Leggings

Available: XS – XL

Size Waist (in) Hip (in) Inseam (in)
XS 24–26 34–36 27
S 26–28 36–38 27.5
M 28–30 38–40 28
L 30–32 40–42 28.5
XL 32–34 42–44 29

Women's Capris

Available: XS – XL

Size Waist (in) Hip (in)
XS 24–26 34–36
S 26–28 36–38
M 28–30 38–40
L 30–32 40–42
XL 32–34 42–44

Women's Shorts

Running shorts: XS–2XL. Yoga and fitted shorts: XS–XL.

Size Waist (in) Hip (in)
XS 24–26 34–36
S 26–28 36–38
M 28–30 38–40
L 30–32 40–42
XL 32–34 42–44
2XL 34–36 44–46

BABY & KIDS

Baby Onesies / Bodysuits

Available: NB, 6M, 12M, 18M, 24M

Size Age Weight (lbs) Height (in)
NB 0–3 months Up to 8 Up to 21.5
6M 3–6 months 12–16 24–26.5
12M 6–12 months 16–20 26.5–29
18M 12–18 months 20–24 29–31.5
24M 18–24 months 24–28 31.5–34

FOOTWEAR

M-Sole Platform Sneakers

If between sizes, size up for comfort.

Men's

US Men's EU
US 5.5 EU 36
US 6 EU 36.5
US 6.5 EU 37
US 7 EU 38
US 8 EU 39
US 8.5 EU 40
US 9 EU 41
US 9.5 EU 41.5
US 10 EU 42
US 10.5 EU 42.5
US 11 EU 43
US 11.5 EU 44
US 12 EU 44.5

Women's

US Women's EU
US 6 EU 39
US 7 EU 40
US 7.5 EU 41
US 8 EU 41.5
US 8.5 EU 42
US 9 EU 42.5
US 9.5 EU 43
US 10 EU 44
US 10.5 EU 44.5
US 11 EU 45
US 11.5 EU 46
US 12.5 EU 47.5
US 13.5 EU 48

Sport Sneakers (Dirt Racing / Muddy Flag)

Men's

US Men's EU
US 5.5 EU 36
US 6 EU 36.5
US 6.5 EU 37
US 7 EU 38
US 8 EU 39
US 8.5 EU 40
US 9 EU 41
US 9.5 EU 41.5
US 10 EU 42
US 10.5 EU 42.5
US 11 EU 43
US 11.5 EU 44
US 12 EU 44.5

Women's

US Women's EU
US 6 EU 39
US 7 EU 40
US 7.5 EU 41
US 8 EU 41.5
US 8.5 EU 42
US 9 EU 42.5
US 9.5 EU 43
US 10 EU 44
US 10.5 EU 44.5
US 11 EU 45
US 11.5 EU 46
US 12.5 EU 47.5
US 13.5 EU 48

Running Sneakers

Men's

US Men's EU
US 5 EU 35
US 5.5 EU 36
US 6 EU 37
US 7 EU 38
US 8 EU 39
US 9 EU 40
US 10 EU 41
US 11 EU 42
US 11.5 EU 43
US 12 EU 44

Women's

US Women's EU
US 5 EU 38
US 6 EU 39
US 7 EU 40
US 7.5 EU 41
US 8.5 EU 42
US 9.5 EU 43
US 10 EU 44
US 11 EU 45
US 12 EU 46
US 13 EU 47
US 14 EU 48

Kids'

Size EU
11 Child EU 28
11.5 Child EU 29
12 Child EU 30
13 Child EU 31
1 Youth EU 32
2 Youth EU 33
3 Youth EU 34

High Top Shoes (Canvas)

Men's

US Men's EU
US 5.5 EU 36
US 6 EU 37
US 7 EU 38
US 8 EU 39
US 9 EU 40
US 10 EU 41
US 11 EU 42
US 11.5 EU 43
US 12 EU 44

Women's

US Women's EU
US 5 EU 38
US 6 EU 39
US 7 EU 40
US 7.5 EU 41
US 8.5 EU 42
US 9.5 EU 43
US 10 EU 44
US 11 EU 45
US 12 EU 46

Low Top Shoes

Men's

US Men's EU
US 5.5 EU 36
US 6 EU 37
US 7 EU 38
US 8 EU 39
US 9 EU 40
US 10 EU 41
US 11 EU 42
US 11.5 EU 43
US 12 EU 44

Women's

US Women's EU
US 5 EU 38
US 6 EU 39
US 7 EU 40
US 7.5 EU 41
US 8.5 EU 42
US 9.5 EU 43
US 10 EU 44
US 11 EU 45
US 12 EU 46

Boots

Women's sizing, runs true to size.

US Women's EU
US 5 EU 35
US 5.5 EU 36
US 6 EU 37
US 7 EU 38
US 8 EU 39
US 9 EU 40
US 10 EU 41
US 11 EU 42
US 11.5 EU 43
US 12 EU 44
US 12.5 EU 45
US 13 EU 46

Slip-On Shoes

Unisex. Available: US 8 – US 14

US EU
US 8 EU 40
US 9 EU 41
US 10 EU 42
US 11 EU 43
US 12 EU 44
US 13 EU 45
US 14 EU 46

Slide Sandals

Men's

US Men's EU
US 5.5 EU 38
US 6 EU 39
US 7 EU 40
US 7.5 EU 41
US 8 EU 42
US 9 EU 43
US 10 EU 44

Women's

US Women's EU
US 5 EU 36
US 5.5 EU 36.5
US 6 EU 37
US 6.5 EU 38
US 7 EU 39
US 8 EU 40
US 8.5 EU 41
US 9 EU 42
US 10 EU 43

Kids'

Size EU
9.5 Child EU 26
10 Child EU 27
11.5 Child EU 28–29
12–13 Child EU 30–31
1 Youth EU 32
2 Youth EU 33
3 Youth EU 34

Crew Socks

Size Fits Shoe Size (US)
Small / Medium Women's 5–8 / Men's 4–7
Large / X-Large Women's 8.5–12 / Men's 7.5–12

BAGS & ACCESSORIES

Backpacks

One size. Dimensions may vary slightly by style.

Spec Measurement
Height ~16.5 in (42 cm)
Width ~12 in (30 cm)
Depth ~5.5 in (14 cm)
Capacity ~25L
Laptop Sleeve Fits up to 15 inch laptop

Shoulder Handbags

One size — exact dimensions listed on each product page.

Hats & Caps

Universal fit — one size fits most with adjustable strap.

Face Masks

One size fits most adults.

Wallet Phone Cases

Available by phone model — select your model on the product page.

HOME & LIFESTYLE

Bedding Sets

Region Available Sizes
US Twin, Queen/Full, King, California King
AU Single, Double, Queen, King
UK Single, Double, King, Super King

Pillows

Available in Small, Medium, and Large square. Exact dimensions on each product page.

Blankets & Throws

Typically 50 x 60 inches. Sherpa blankets include a plush fleece back. Exact dimensions on each product page.

Door Mats

Available in two sizes. Custom shaped designs — actual shape follows the design.

Size Max Dimensions (in) Max Dimensions (cm)
Large 39 x 39 in 99 x 99 cm
Small 19.5 x 19.5 in 49.5 x 49.5 cm

Rugs

Size Dimensions
Small 3 x 5 ft
Medium 4 x 6 ft
Large 5 x 8 ft

Luggage Covers

Size Suitcase Height
Small 18–22 in / 45–55 cm
Medium 23–26 in / 56–66 cm
Large 27–30 in / 67–76 cm

Car Seat & Headrest Covers

Universal fit — designed to fit most standard car seats and headrests.

Tumblers

Available in 14oz and 20oz. Both fit standard car cup holders.

HOW TO MEASURE YOURSELF

  • Chest/Bust: Around the fullest part of your chest, tape level under your arms.
  • Waist: Around the narrowest part of your natural waist.
  • Hip: Around the fullest part of your hips.
  • Shoulder: From the edge of one shoulder across to the other.
  • Length (tops): From highest point of shoulder down to hem.
  • Sleeve: From center back of neck, across shoulder, down to wrist.
  • Foot Length: Heel to tip of longest toe on a flat surface.
  • Inseam: From crotch seam to bottom of leg.

Still Not Sure?

Reach out before you order — we would rather help you get it right the first time. Contact us via the Contact page and we will get back to you fast.

Race day ready starts with the right fit.