Westside Barbell Mystery Apparel

Name: Westside Barbell Mystery Apparel
Rating: 4.51 (51 reviews)

Price

$11.25

$15.00 $11.25

Save 25%

In stock, ready to ship
Backordered, shipping soon

Size —

Apparel & Training Gear Sizing

FIND YOUR FIT

Apparel measurements are taken from the garment, laid flat, in inches. Elbow sleeve measurements are body circumferences; see the dedicated section below. Tolerances are listed where applicable. If you're between sizes, size up for a relaxed fit or down for fitted.

Category

T-SHIRTS

OG Gym, Nitro, WTB & Classic Tee

Men's, body length and chest width, laid flat, in inches

OG Gym, Nitro, WTB and Classic Tee size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL	4XL
Body Length	27	28	29	30	31	32	33	34
Body Length Tol.	1/2	1/2	1/2	1/2	1/2	1/2	1/2	1/2
Chest Tolerance	1/2	1/2	1/2	1/2	1/2	1/2	1/2	1/2
Chest Width	17 1/2	19	20 1/2	22	24	26	28	30

Camo Tee

Men's, length, chest and shoulder width, in inches

Camo Tee size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL	4XL
Length	24	26 1/4	28 1/4	29 1/4	30	31	32 1/4	33 1/2
Chest	17 1/4	18 1/4	19	21	23	25 1/4	27	28 1/4
Shoulder Width	14 3/4	16 3/4	18 1/4	20 3/4	22 1/2	23 1/2	24 1/2	26 1/2

Vintage Tee

Men's, body length, chest and sleeve, in inches

Vintage Tee size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL	4XL
Body Length	27	28	28 1/2	29 1/2	30 3/4	32 1/4	33 1/4	34 1/4
Chest Width	19 7/8	20 7/8	21 7/8	23 7/8	25 7/8	27 7/8	29 7/8	31 7/8
Sleeve Length	7 1/4	7 3/4	8 1/4	8 3/4	9 1/4	9 3/4	10 1/4	10 3/4

Category

TANKS

Men's OG Nitro Tank

Body length and chest width, laid flat, in inches

Men's OG Nitro Tank size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL
Body Length	27	28	29	30	31	32	33
Body Length Tol.	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1
Chest Tolerance	+/-3/4	+/-3/4	+/-3/4	+/-3/4	+/-3/4	+/-3/4	+/-3/4
Chest Width	16	18	20	22	24	26	28

Category

HOODIES & CREWS

Men's Hoodie

Body length, chest and sleeve from center back, in inches

Men's Hoodie size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL	4XL	5XL
Body Length	27 1/2	28 1/2	29 1/2	30 1/2	31 1/2	32 1/2	33 1/2	34	34 1/2
Body Length Tol.	1	1	1	1	1	1	1	1	1
Chest Tolerance	1	1	1	1	1	1	1	1	1
Chest Width	20 1/2	21	23	24 1/2	26 1/2	27 1/2	28 1/2	30	31 1/2
Sleeve Length	34 1/2	35 1/2	36 1/2	37 1/2	38 1/2	39 1/2	40 1/2	41	41 1/2
Sleeve Tolerance	1	1	1	1	1	1	1	1	1

Men's Lux Hooded Sweatshirt

Body length and chest width, laid flat, in inches

Men's Lux Hooded Sweatshirt size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL
Body Length	26 1/2	28	29 1/2	31	32 1/2	34	35 1/2
Chest Width	19 1/2	21	22 1/2	24	25 1/2	27	28 1/2

Crewneck Sweatshirt

Body length, chest and sleeve from center back, in inches

Crewneck Sweatshirt size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL	4XL	5XL
Body Length	26	27	28	29	30	31	32	33	34
Body Length Tol.	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1
Chest Tolerance	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1
Chest Width	18	20	22	24	26	28	30	32	34
Sleeve Length	32 1/2	33 1/2	34 1/2	35 1/2	36 1/2	37 1/2	38 1/2	39 1/2	40 1/2
Sleeve Tolerance	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1	+/-1

Category

BOTTOMS

Men's Jogger

Inseam, outseam and waist, in inches

Men's Jogger size chart in inches
Measurement	XS	S	M	L	XL	2XL
Inseam	28	29 1/2	30	30	30 1/2	30 1/2
Length Tolerance	1	1	1	1	1	1
Outseam	38	40	41	41 1/2	42 1/2	43
Waist	26 to 28	28 to 31	31 to 33	33 to 35	35 to 38	38 to 42
Waist Tolerance	1	1	1	1	1	1

Nitro Sweatpant

Inseam and waist, in inches

Nitro Sweatpant size chart in inches
Measurement	S	M	L	XL	2XL	3XL
Inseam	29.5	30	30.5	31	32	33
Waist	16.25	17.25	18.25	19.25	20.25	21.25

Category

WOMEN'S

Women's Original Gym Tee

Body length and chest width, laid flat, in inches

Women's Original Gym Tee size chart in inches
Measurement	XS	S	M	L	XL	2XL	3XL
Body Length	25 3/4	26 3/8	27	27 5/8	28 1/4	28 7/8	29 1/2
Body Length Tol.	1/2	1/2	1/2	1/2	1/2	1/2	1/2
Chest Tolerance	1/2	1/2	1/2	1/2	1/2	1/2	1/2
Chest Width	15 1/2	16 1/4	17 1/4	18 1/4	19 3/4	21 1/4	22 3/4

Training Gear

ELBOW SLEEVES

7mm Neoprene Elbow Sleeves

Body circumference measurements in centimeters and inches — not garment measurements.

Slightly bend your elbow 30° and measure your arm circumference 4 inches (10 cm) above the elbow joint.

Open the size-guide graphic at full size

Elbow sleeve body circumference measurements in centimeters and inches
Size	Forearm (cm)	Forearm (in)	Lower Biceps (cm)	Lower Biceps (in)
S	24.1–29.2	9.5–11.5	26.7–33	10.5–13
M	26.7–31.8	10.5–12.5	30.5–36.8	12–14.5
L	30.5–35.6	12–14	33–40.6	13–16
XL	33–38.1	13–15	35.5–43.2	14–17
2XL	35.6–40.6	14–16	39.4–48.3	15.5–19
3XL	38.1–43.18	15–17	43.2–52.07	17–20.5

Reference

HOW TO MEASURE

Apparel measurements above are taken from the garment laid flat. For elbow sleeves, use the body circumference instructions in the Elbow Sleeves section. To compare against a shirt you already own and love, lay it flat on a hard surface and measure with a tape.

Body Length

From the highest point of the shoulder seam straight down to the bottom hem.

Chest Width

One inch below the armhole, measured straight across from edge to edge. Garment laid flat, not doubled.

Sleeve Length

From the center back of the collar, across the shoulder seam, all the way down to the sleeve cuff.

Shoulder Width

From the outer edge of one shoulder seam straight across to the outer edge of the other.

Inseam

From the crotch seam straight down the inside of the leg to the bottom of the hem.

Waist

Across the top of the waistband, edge to edge. Double the number for full waist circumference.

Tolerance is the acceptable variance per garment. A "+/- 1" tolerance means the actual measurement can be up to one inch over or under the listed size.

Still Stuck

NOT SURE WHICH SIZE TO ORDER?

If you're between sizes or sizing for a specific lift or sport, send us your height, weight, and what shirt size you wear from another brand. We'll point you in the right direction.

Email Orders

Quantity

30 Day Return

Secure payments

Unwrap the unexpected with the Westside Barbell Mystery Apparel! Each mystery pack could contain a premium-quality tank or t-shirt ranging from our current lineup, a classic design, or even a never-before-seen print.

Why take a chance on Mystery Apparel?

Surprise Factor: You might discover a hidden gem from our archives or land a limited-edition piece.
Guaranteed Quality: Every item is thoroughly inspected and ready to wear.
Unmatched Value: A chance to own premium Westside gear at a fraction of the original price.

Take a chance, and let your mystery item become your next gym favorite or go-to casual wear.

Note: No refunds or exchanges. If you purchase more than one shirt, you may receive the same style or design—don’t expect a unique graphic for every garment or size. All sales are final, because mystery is only for those who dare.

5 stars: 41 (80%)
4 stars: 3 (6%)
3 stars: 3 (6%)
2 stars: 0 (0%)
1 star: 4 (8%)

Mystery Apparel

This shirt turned out to be my son’s favorite from your company so far. Easy shopping, quick delivery.

Great quality!

Great quality

Great quality looking forward to purchasing more things

awesome

Great quality

Got a mystery tee, a tank, and a banner for my friend’s gym-warming. All three were solid quality. The two shirts were the standouts — actually soft, but they didn’t go sloppy or lose shape. Most gym shirts are either sandpaper or they look like they melted in the wash. These held form. Would wear both again.

Good shirt selection, usually mystery shirts arent that good but these were both good quality and good designs

Recieved a completely blank shirt. It was literally just a plain grey gildan t-shirt. I guess mystery product is correct because I’m for sure confused.

Mystery shirt-same shirt different colors

I purchased 12 shirts. I didn’t get any rare shirts. I just got multiple of the same in different colors. Two of them were current shirts on the website and that was it. Other 10 didn’t have images just exact same words in different colors. I tried for something special cause I look up to west side. And it was a way to take my money. I’ll leave it at that.

Long Distance Quality!

Second order from Westside, always delivers, always quality items, and something different to the big teshirt providers. Don't need a big animal on my back at 73 years old. Keep up the good work lads.

Shipped very fast and shirt is good quality

Awesome!

Always love representing Westside! I ordered a 4XL because I wanted that oversized pump cover. Shirts fit great and they were both sweet mystery shirts! Never disappointed with their product. Will continue to buy from them!!

Mystery items

I received two mystery shirts. They fit excellently and are great additions to my gym workwear

I absolutely love these “Mystery Box” orders. This is my second one and both uave been hits!

Not delivered

The courier used did not deliver the item .

Good shirts little tight on the arms but still great quality stuff

Outstanding quality

Awesome shirt and fits perfect

Best quality, every time

Thank you for being Westside barbell

Mystery Item

Received books, but no mystery item

Westside Barbell Mystery Apparel

Never received- no response from them

Ordered 3 shirts that never arrived. Emailed them multiple times, and they didn't respond. I wouldn't trust them!

Fits very well and always recommend your product and training to anyone looking to better themselves

Great T-shirts and fast shipping.

Great shirt!

Awesome

WESTSIDE BARBELL IS GREAT. Ordered some books to help my training. Sent a free shirt with the order. Really appreciate it. Soft material. Great fit.

Great value

The quick delivery, quality of the shirts, and ease of doing business with WSBB make it a great value. Thanks.

Nice shirts

Mystery apparel

I got 2 separate orders of the mystery apparel and pretty much got the same shirt. I think they could do better with this. The quality of the shirt was good but I would expect to get totally different shirts. The same shirt with different colored logo. I guess I expected something different

Westside T-shirts

Always great grimy new shirts from Westside. Never disappointed.

Great Shirt !

I ordered the mystery box and received a great shirt ! A shirt I didn’t even know they had ! Fit great awesome color and all at a cheaper price !

Great !

Always 5 star !!

Westside Barbell Mystery Apparel

T-SHIRTS

OG Gym, Nitro, WTB & Classic Tee

Camo Tee

Vintage Tee

TANKS

Men's OG Nitro Tank

HOODIES & CREWS

Men's Hoodie

Men's Lux Hooded Sweatshirt

Crewneck Sweatshirt

BOTTOMS

Men's Jogger

Nitro Sweatpant

WOMEN'S

Women's Original Gym Tee

ELBOW SLEEVES

7mm Neoprene Elbow Sleeves

HOW TO MEASURE

Body Length

Chest Width

Sleeve Length

Shoulder Width

Inseam

Waist

NOT SURE WHICH SIZE TO ORDER?

Why take a chance on Mystery Apparel?

Customer Reviews