[Fitness Eddy](https://agents.fitnesseddy.com) › [MMA & Boxing](https://agents.fitnesseddy.com/product-category/mma-boxing) › Flex Brief Athletic Underwear for Men – 100% Polyester Sports Briefs in 5 Colors

# Flex Brief Athletic Underwear for Men – 100% Polyester Sports Briefs in 5 Colors

**Brand:** Fitness Eddy
**SKU:** `CJJT1165054`
**Price:** 70.04 USD
**Availability:** in stock
**Categories:** MMA & Boxing
**Image:** https://agent-feed.xpay.sh/images/fitnesseddy-com/270a94170ab8876d.webp

**Product page (for human checkout):** https://fitnesseddy.com/product/fitness-eddy-men-athletic-underwear-premium-polyester-blend-sports-briefs-gym-performance-performance-base-layer/?xpay_ref=sidecar_pdp

## Description

Support that stays put through every set Flex Brief athletic underwear for men is a sports brief made for gym workouts, cardio, running and cross-training. A 100% polyester exterior with a smooth lining is designed to wick sweat, and a heavy-duty elastic waistband holds the fit without shifting or rolling. The brief cut leaves hips and legs free for squats, footwork and sprints. Smooth seams are designed to reduce irritation, so you can focus on training. Pick black, blue, green, orange or red. Why choose the athletic underwear for men 100% polyester exterior for a lightweight feel Smooth lining designed to pull sweat away from the body Elastic waistband that stays in place Brief cut for hip and leg mobility Five colors to choose from All-season breathable base layer Built for Gym workouts Cardio conditioning Weightlifting Running and cross-training Specifications Exterior: 100% polyester Internal lining: 98% blend Style: athletic brief Colors: black, blue, green, orange, red Intended for adult men Fit and sizing Check the size details and product images on this page before you order. Not sure? Email info@fitnesseddy.com and we will help you choose. Free shipping and easy returns Order today and Fitness Eddy ships it free to your doorstep in the USA, Europe, Australia, New Zealand and the GCC. We dispatch within 3 days and delivery takes 5 to 7 days, with a tracking number sent to your email. If it is not right, return it unused in its original packaging within 30 days. Free shipping to your door 20% off applied automatically at checkout, no code needed 30-day returns on unused items Secure checkout with encrypted card payments through Stripe Frequently asked questions What is it made of?A 100% polyester exterior with a smooth lining. What colors are there?Black, blue, green, orange and red. Do you ship free?Yes. Free doorstep shipping, delivered in 5 to 7 days. Can I return it?Yes. 30 days, unused, in original packaging. How do I get 20% off?It applies automatically at checkout. No code needed. Product images and details

## Returns

14-day returns.

## How to purchase

This product is sold by **Fitness Eddy** at fitnesseddy.com. Two paths:

1. **Direct (recommended for humans):** open https://fitnesseddy.com/product/fitness-eddy-men-athletic-underwear-premium-polyester-blend-sports-briefs-gym-performance-performance-base-layer/?xpay_ref=sidecar_pdp and complete checkout on the merchant site.
2. **Agent-to-agent (MCP):** call the `get_product` tool on `https://agent-commerce.xpay.sh/mcp/fitnesseddy-com` with `sku=CJJT1165054` for the full record, then `create_cart` to mint a signed deeplink. Discovery: `https://agents.fitnesseddy.com/.well-known/mcp.json`.

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