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4.9 · 25 reviews
American Flag Athletic Shorts
£39.00£47.00
- Free shipping $100+Stack gear and save on delivery
- Delivery informationShipping policy
- Returns & exchangesCheck eligibility before ordering
- Fighter ownedDesigned by real BJJ, boxing & MMA athletes
Size & fit help
Measure a pair of shorts that fits you well, laid flat. Waist width and hip width are measured across the garment, not around your body. Measure the inseam from the crotch to the hem and total length from the top of the waistband to the hem.
Measurements in inches
| Size | Waist width | Hip width | Inseam | Total length |
|---|---|---|---|---|
| XS | 13½ | 20 | 6 | 16 |
| S | 14½ | 21 | 6 | 16½ |
| M | 15½ | 22 | 6½ | 17½ |
| L | 16½ | 23 | 6½ | 18 |
| XL | 17½ | 24 | 7 | 19 |
| 2XL | 18½ | 25 | 7 | 19½ |
| 3XL | 19½ | 26 | 7½ | 20½ |
| 4XL | 20½ | 27 | 7½ | 21 |
Measurements in centimeters
| Size | Waist width | Hip width | Inseam | Total length |
|---|---|---|---|---|
| XS | 34.3 | 50.8 | 15.2 | 40.6 |
| S | 36.8 | 53.3 | 15.2 | 41.9 |
| M | 39.3 | 55.8 | 16.5 | 44.4 |
| L | 41.9 | 58.4 | 16.5 | 45.7 |
| XL | 44.4 | 60.9 | 17.7 | 48.2 |
| 2XL | 46.9 | 63.5 | 17.7 | 49.5 |
| 3XL | 49.5 | 66 | 19 | 52 |
| 4XL | 52 | 68.5 | 19 | 53.3 |
These are garment measurements, not body measurements. Handmade production can result in a variation of up to 1 inch (2.54 cm).
Shipping & returns
Production time and delivery estimates vary by product and destination. Check the shipping policy before ordering; available shipping rates are shown at checkout. Shipping policy
Eligible items may be returned within 30 days with prior approval. Items must be unworn with tags and packaging. Exclusions apply, including sale items, hats, rash guards, swimwear and custom items. Return shipping is paid by the customer unless we made an error. Return policy
Secure checkout
Secure checkout with major cards and accelerated payment options where available. Fighter-owned brand based in Tampa / St. Petersburg, Florida.
Only 10000 left in stock.
Built for athletes who train hard and still need to move free.
The American Flag Athletic Shorts are King Killers fightwear energy for the gym, fight camp, and street. Lightweight two-way stretch fabric keeps you mobile through bag work, open mat, and conditioning — without bagging out after one session.
Why fighters grab these
- Athletic cut that stops just above the knee for coverage without drag
- Two-way stretch fabric that moves with hips and knees
- Side pockets for phone/keys when you leave the gym
- Bold American flag graphic that reads fight-fan, not boardroom
- Pairs with King Killers tees, rash guards, and walkout layers
Fit tip: True to size for training. Size up for a looser recovery-day fit.
Fulfillment: Made to order (about 3–6 business days), then ships. Free shipping on orders $100+.
American Flag Athletic Shorts
XS
£39.00
Questions
Before You Gear Up
Fit, shipping, and returns — answered before you buy.
How should King Killers gear fit?
Compare the measurement chart for this product with a similar garment that fits you well. Sizes vary by style; contact us before ordering if you need help.
How long does shipping take?
Production and delivery estimates vary by product and destination. See the shipping policy for current estimates and exceptions. Shipping rates are confirmed at checkout.
What is the return policy?
Returns require prior approval and are limited to eligible unworn items within 30 days. Exclusions and return shipping charges apply. Read the return policy before ordering.