The Endurance Short: 2-in-1 Built-In Belt Marathon Shorts

Orders are processed within 3–5 business days.

Estimated delivery times:

United States: 5–10 business days

International: 7–15 business days

Once shipped, you’ll receive a tracking number via email to follow your order every step of the way.

Once your order is shipped, we will provide you with a tracking number via email. You can use this tracking number to monitor the progress of your shipment on our website or the shipping carrier's website.

Ditch the fanny pack. Leave the arm band at home. Stop stuffing your phone down your waistband and hoping for the best. The Interval Short was designed to carry everything you need so the only thing you're focused on is your next PR.

With 6 purpose-built pockets, a built-in compression liner, and quick-dry ripstop fabric that moves with you, this is the short that replaces your running shorts, your gym shorts, your hiking shorts, and that drawer full of compromises.

FEATURES

• Front mesh waistband pocket.
• Built-in compression liner + thigh pocket.
• 2-in-1 design.
• Adjustable internal drawcord waist.
• Split hem design.
• Rear waistband towel loops.
• Standard side pockets.

SIZE & FIT

• Regular fit outer shell
• Fitted compression liner
• 7" inseam based on size M
• Model is 6'0" and wears size M
• Drawcord waistband (2" of adjustability)

MATERIALS & CARE

• Outer shell: 90% Polyester, 10% Spandex
• Inner liner: 85% Polyester, 15% Spandex
• Machine wash cold, tumble dry low
• Do not use fabric softener.

The outer shell has a 7" inseam, the sweet spot between too short and too long. The compression liner underneath sits at 5" for secure, no-ride coverage.

Nope. The built-in compression liner replaces underwear entirely. It's a boxer-brief style liner with stretch-mesh pockets, so you get support, anti-chafe protection, and phone storage all in one layer.

Absolutely. The two side-seam pockets zip shut. The liner pocket is stretch-mesh compression so your phone stays locked against your thigh with zero bounce. The waistband pocket is designed for trail runs and race-day use. Your gear isn't going anywhere.

Regular gym shorts give you one layer and maybe two pockets. The Endurance Short gives you a quick-dry stretch outer shell + a compression liner + 6 pockets + split hems. It replaces your running shorts, your compression underwear, and your carrying solution in a single garment.

The quick-dry fabric handles water well and dries fast, so they work as swim trunks in a pinch. The compression liner doubles as a built-in swim brief. Just rinse with fresh water after saltwater or chlorine exposure.

Machine wash cold, tumble dry low or hang dry. No fabric softener, it can reduce moisture-wicking performance over time.

Order your normal waist size. The drawcord waistband gives about 2" of adjustability in either direction, and the 4-way stretch fabric is forgiving. When in doubt, size up, the drawstring will dial it in.