Deep space near NuKrypton

Sizing & Fit

Pick your size with confidence. This hub explains how to measure and links you to the correct size chart for each product type.

Important: Size charts are garment-specific. Always use the chart linked from the product page (or the matching chart below).

How to measure (fast + accurate)

  • Chest width: measure across the chest about 1 inch below the armhole (or measure your chest circumference where the chart says "chest to fit").
  • Body length: measure from the high point of the shoulder to the bottom hem.
  • Sleeve length: measure from the center back of the neck to the sleeve hem (for hoodies/long sleeves).

Pro tip: Grab your favorite-fitting shirt and measure that instead of guessing your body size.

Size charts (quick access)

Fit types (what to expect before you buy)

Understanding fit = fewer returns.

Unisex T-shirts

  • Fit: Retail (not boxy, not slim)
  • Feel: Soft, breathable, everyday wear
  • Best for: Most body types

Hoodies & Sweatshirts

  • Fit: Regular to slightly relaxed
  • Feel: Structured with room for layering
  • Best for: Cozy fit, casual wear

Muscle Tanks (Unisex)

  • Fit: Slightly tapered retail fit
  • Feel: Lightweight, breathable
  • Best for: Warm weather, active wear

Women's Muscle Tanks

  • Fit: Relaxed, drapey
  • Cut: Lower armholes, more flow
  • Best for: Casual styling, looser silhouette

👉 Translation: nothing here is ultra-slim or oversized by default—it’s built for real-world wear, not runway sizing.

Fit tips (so you don't guess wrong)

  • Between sizes? Size up for a roomier fit.
  • Prefer a fitted look? Follow chest measurements closely and compare to a shirt you already own.
  • Layering (hoodies/sweatshirts)? Size up if you plan to wear over other clothing.
  • Gift sizing? When in doubt, a size up is usually safer.

Reality check: Most sizing issues come from guessing. Measuring once solves it permanently.

Reference tables (most-used charts)

Unisex T-shirt (U.S. guide)

Size Body Length (in) Chest Width (in) Sleeve Length (in)
S 27 ⅛ 19 ½ 8 ⅞
M 28 ¾ 21 9 ½
L 29 ½ 22 ¼ 9 ⅝
XL 30 ¼ 23 ⅜ 9 ⅞
2XL 31 ⅛ 25 10
3XL 31 ⅞ 26 ⅝ 10 ¼
4XL 32 ⅝ 28 ½ 10 ¼
5XL 33 ⅛ 30 ½ 10 ¼

View the full Unisex T-shirt size chart (includes EU guide + measuring tips)

Hoodie (U.S. guide)

Size Body Length (in) Chest to Fit (in) Sleeve Length (in)
S 26 ¾ 33--36 25 ¼
M 28 ⅜ 37--39 ¾ 25 ¾
L 29 ⅛ 41--42 ⅞ 26 ⅜
XL 29 ⅞ 43 ¾--45 ⅝ 27
2XL 30 ¾ 46 ⅞--48 ⅞ 27 ½
3XL 31 ½ 50--53 28 ⅜
4XL 32 ¼ 54--57 29 ⅛
5XL 33 ⅛ 58--61 29 ¾

View the full Hoodie size chart (includes EU guide + measuring tips)

Unisex Muscle Tank (U.S. guide)

Size Shirt Width (in) Shirt Length (in) Chest to Fit (in)
S 18 26 34--37
M 20 27 38--41
L 21 5/8 28 42--45
XL 23 5/8 29 46--49
2XL 25 5/8 30 50--53

View the full Unisex Muscle Tank size chart (includes EU guide + measuring tips)

Women's Muscle Tank: uses a different chart (length + width). View Women's Muscle Tank size chart

Non-apparel items (quick clarity)

These products do not require sizing decisions, which is why they’re popular for gifting:

  • Tote bags: one size (carry capacity varies by style)
  • Mugs & drinkware: fixed sizes (11oz, 15oz, etc.)
  • Stickers & home goods: size listed per product
  • Jewelry: adjustable chains or one-size wearable
  • Watches: adjustable straps

👉 Translation: no sizing stress on these categories.

Common sizing mistakes (and how to avoid them)

  • Mistake: “I usually wear a Large everywhere” → Fix: Brands vary. Always check the chart.

  • Mistake: Ignoring garment fit type → Fix: Know if it’s relaxed vs fitted

  • Mistake: Guessing for gifts → Fix: Size up when unsure

  • Mistake: Measuring your body incorrectly → Fix: Measure a shirt you already like

Need help choosing?

Reach out with the item you're buying + your measurements, and we’ll point you to the best chart.

Email: info@nukrypton.com