The SpareParts Pete Trunks nylon packing underwear in black size S is a purpose-built boxer brief designed for everyday packing. The short trunk cut sits low on the hip and ends at the upper thigh, hiding packer outline under jeans, joggers, and trousers. A double-layer front panel creates a secure, non-opening pouch that holds a soft packer exactly where it needs to be. The nylon blend stays cool on warm days, dries quickly after washing, and resists pilling even after repeated wear. A soft waistband with the SpareParts logo sits flat without rolling, and the leg openings stay put without gripping or riding up.

• Built-in packer pouch: The double-layer front panel forms a discrete, no-zipper pocket that cradles a packer and stops shifting during activity.
• Nylon fabric: The nylon-elastane blend wicks moisture, breathes freely, and creates a slick outer surface that lets clothes glide over the brief without bunching.
• Square cut trunk: A 5-inch inseam covers the upper thigh and eliminates fabric bulk under shorts or slim-fit pants.
• Flat-lock seams: Minimal chafing from stitched edges that run flat against the skin during a full day of movement.
• Soft logo waistband: A wide elastic band keeps the brief secure without creating pressure marks.

The Pete Trunks body is 80% nylon and 20% spandex. This combination provides steady stretch and a supportive feel that recovers after each wash. The pouch lining uses the same breathable blend so moisture moves away from the body.

Care instructions: Machine wash cold with like colors. Tumble dry low or line dry for best longevity. Do not bleach or iron. The color stays true through regular laundering.

Step into the Pete Trunks and pull them up until the waistband sits at your natural waist. Place your packer into the front pouch through the internal opening, adjusting it so the shaft points downward or forward depending on your packer shape and preference. The panel holds the weight without extra layers, so you only need one pair of underwear. For extended wear, check the pouch positioning after an hour and smooth the fabric if needed.

The Pete Trunks nylon packing underwear works with most small to medium packers, including standard silicone or foam shapes. The pouch measures approximately 4 inches wide by 5 inches tall when flat, accommodating packers up to 5 inches in length without overstretching. If you use a larger or heavier prosthetic, the stretch panel adjusts while the rest of the brief stays in place. The design also functions as a comfortable boxer brief without a packer when you want a day off.

Size	Waist (inches)
S	28-30
M	31-33
L	34-36
XL	37-39

If you are between sizes, choose the smaller size for a snug pouch feel or the larger size for a relaxed waistband. The material has enough give to cover a 1-2 inch variation without losing shape.

We wore the SpareParts Pete Trunks nylon packing underwear through work days, gym sessions, and long walks. The trunk length stays invisible under mid-thigh shorts, and the black fabric shows no packer outline even under lighter-colored pants. Our team noticed zero ride-up and no waistband roll, even after hours of sitting. The pouch kept a soft packer centered without needing readjustment. If you want a low-maintenance boxer brief that disappears under clothes and handles sweat, this is our go-to recommendation.

Q: What packers work best with the Pete Trunks nylon packing underwear?

A: Small to medium packers up to 5 inches in length sit most securely. Heavier silicone pieces may require occasional adjustment if worn during high-impact activity.

Q: Can I machine wash this nylon packing underwear?

A: Yes, machine wash cold and tumble dry low. The nylon-spandex fabric resists fading and pilling through regular cycles.

Q: Does the pouch close with a zipper or snap?

A: No, it is a sewn-in double-layer panel that the packer slides into from inside the brief. This design keeps everything flat and eliminates hardware discomfort.

Q: Will the black size S fit someone with a 29-inch waist?

A: Yes, the size S fits waist 28-30 inches, so a 29-inch waist falls well within the range and gives a supportive fit.

Q: Can I wear these without a packer?

A: Absolutely. The pouch lies flat when empty, so you can use them as a regular pair of nylon boxer briefs on non-packing days.

Weight	0.5 kg
Dimensions	20.32 × 15.24 × 10.16 cm