Sin Devil FAQ: Sizing, Shipping, Returns & Product Care

Everything you need to know about shopping with Sin Devil Sport Wear — sizing, shipping to Miami and the rest of South Florida, returns and exchanges, and how to care for your activewear so it lasts. If you don't see your question answered here, contact us through the site.

Sizing & Fit

Do Sin Devil leggings run true to size?

Yes — Sin Devil Sport Wear leggings run true to standard US women's sizing. Our size chart is: XS (US 0-2), S (US 4-6), M (US 8-10), L (US 12-14). Each product page includes a detailed size chart showing exact waist, hip, inseam, and length measurements in centimeters. If you are between sizes, we recommend sizing DOWN for compression and tummy control styles, and sizing UP for relaxed seamless fits.

How do I measure for high waist leggings?

Take three measurements with a soft tape measure: 1) Natural waist — the narrowest point above the navel, measured while exhaling normally. 2) Hip — the fullest part of your hips, usually 7-9 inches below the natural waist. 3) Inseam — from the inside of the thigh down to the ankle. Compare these to the size chart on each product page. If you fall between two sizes, pick based on the construction (compression = size down, relaxed = size up).

Are Sin Devil leggings squat-proof?

Yes. Our seamless and compression leggings — including the High Waist Seamless Squat-Proof Leggings, Tummy Control Leggings, and Body Sculpting Compression Leggings — use circular-knit nylon-spandex construction with reinforced opacity. They are tested squat-proof for gym, pilates, barre, and yoga floor work. As a general rule, slightly thicker fabrics give better squat-proof coverage, especially in lighter colors.

What size am I if I'm in between sizes?

It depends on the legging construction. For COMPRESSION styles (Tummy Control, Body Sculpting, Mesh Panel) — size DOWN. The fabric needs to stretch to deliver shaping. For SEAMLESS styles (Squat-Proof Seamless, Flexible High Waist, Pastel Pink Ombre) — true to size. For RELAXED or stretchy fits — size UP if you prefer extra room. When unsure, the safer call is your usual US size; you can always exchange for a different size within 14 days of delivery.

Do the matching workout sets fit the same top and bottom?

Sin Devil matching sets — like the Aurora Ombre Sports Bra & Leggings Set, Bloom Pink Crop Tee & Leggings Set, and Grey & Blue Color Block Set — are sized consistently across both pieces. Order the same size for top and bottom unless your top and bottom typically size differently in standard women's sizing. If you size differently top-to-bottom (which is common), order the size that matches your bottom; the tops have stretch to accommodate.

Are Sin Devil leggings high-waisted enough to cover the stomach?

Yes. All Sin Devil leggings labeled 'high waist' have a 4-6 inch wide structured waistband that sits at or above the natural waist (around the navel). The Tummy Control High Waist Leggings have an even wider waistband for additional coverage and shaping. The waistband is designed to stay in place during squats, lunges, and pilates work without rolling down or digging in.

Shipping & Delivery

Where does Sin Devil Sport Wear ship from?

Sin Devil Sport Wear ships from South Florida. Orders to Miami, Boca Raton, Fort Lauderdale, Hollywood, Aventura, and the rest of South Florida typically arrive faster than the standard timeline due to local proximity. We use USPS and UPS for domestic shipping.

How long does shipping take for Sin Devil orders?

Standard US shipping: 3-7 business days from order date. Local Miami / South Florida shoppers typically receive orders in 1-3 business days due to our South Florida fulfillment location. Orders are processed and shipped within 1-2 business days of being placed. You will receive an email with USPS or UPS tracking once your order ships.

Is shipping free at Sin Devil Sport Wear?

Yes — free standard US shipping on all orders over $75. Orders under $75 ship at a flat rate. Use code FREESHIP100 for free shipping on orders over $100, or look for promotional free shipping offers on the homepage. Local Miami pickup is not currently available.

Does Sin Devil ship internationally?

Sin Devil Sport Wear currently ships within the United States only. International shipping is being evaluated for 2026. If you are outside the US and want to be notified when international shipping launches, sign up for our email list on the homepage.

How can I track my Sin Devil order?

Once your order ships, you will receive an email with a USPS or UPS tracking number and a tracking link. Tracking updates take 24-48 hours to appear after shipment. If you have not received a shipping notification within 2 business days of placing your order, please check your spam folder or contact customer service.

Returns & Exchanges

What is Sin Devil's return policy?

Returns are accepted within 14 days of delivery on unworn, unwashed items with all original tags attached. Items must be in resaleable condition. To start a return, contact customer service via the contact form on our site with your order number. Customers are responsible for return shipping unless the item arrived damaged or incorrect. Refunds are processed within 5-7 business days of receiving the returned item.

Can I exchange a Sin Devil item for a different size?

Yes — exchanges are accepted within 14 days of delivery for unworn, unwashed items with original tags. To exchange for a different size, contact customer service with your order number and the size you would like to swap to. We will hold the new size while you ship the original back. Exchange shipping is at the customer's expense unless the original item was sent in error.

Are sale or discounted items returnable?

Items purchased with a discount code (WELCOME10, BUNDLE15, FREESHIP100, or any promotional code) are returnable under the standard 14-day policy. Final sale items, when marked as such on the product page, are not eligible for return or exchange. The product description will clearly state 'Final Sale' if it applies.

What if my Sin Devil order arrived damaged or wrong?

If your order arrived damaged, defective, or you received the wrong item, contact customer service within 7 days of delivery with your order number and photos of the issue. We will provide a prepaid return label and ship a replacement at no cost to you, or issue a full refund — your choice.

How long does it take to get a refund from Sin Devil?

Once your returned item is received and inspected at our South Florida facility, refunds are processed within 5-7 business days back to the original payment method. Depending on your bank, the refund may take an additional 3-5 business days to appear on your statement. You will receive an email confirmation once the refund is issued.

Product Care & Quality

How should I wash Sin Devil leggings?

Machine wash cold inside out with similar colors. Use a gentle detergent. Do NOT bleach. Do NOT use fabric softener — it coats spandex fibers and reduces compression and stretch over time. Lay flat or hang to dry; never use a dryer (heat is the #1 killer of legging stretch). These care steps preserve compression, color, and shape over hundreds of wears.

What are Sin Devil leggings made of?

Sin Devil leggings use a premium nylon-spandex performance blend (typically 80% nylon, 20% spandex) engineered for breathability, four-way stretch, and shape recovery. The fabric is moisture-wicking, quick-drying, and squat-proof. Specific blends per product can be found in the Materials & Care section of each product page.

Are Sin Devil leggings good for hot Miami weather?

Yes — Sin Devil Sport Wear is designed in South Florida for South Florida climate. The nylon-spandex blend is moisture-wicking and breathable. For peak summer heat, look for our cropped capri styles (Navy Cut Out Capris, Pink Leopard Print Capris, Grey Ombre Cut-Out Capris) and mesh-panel leggings (Mesh Panel Compression Leggings) — these add ventilation specifically for Miami humidity and heat.

How do I care for activewear after a beach or pool workout?

Saltwater and chlorine both degrade spandex aggressively. Always rinse leggings in fresh water within 30 minutes of getting home from the beach or pool, even before formally washing. Salt or chlorine that dries into the fibers can break down compression noticeably within 5-10 wears. Then wash cold and lay flat to dry. Do not dry leggings in direct Florida sun — UV breaks down spandex.

How long do Sin Devil leggings last?

With proper care (cold wash, no dryer, no fabric softener, no bleach), Sin Devil leggings hold their compression and color through 200+ wears. The fabric is rated for hundreds of wash-and-wear cycles. Sun damage, chlorine, and dryer heat are the main threats — protect against these and your leggings remain studio-ready for years.

Are Sin Devil leggings see-through when squatting?

No — Sin Devil's seamless squat-proof leggings, tummy control leggings, and compression leggings are engineered with opaque construction tested through squats, lunges, and floor work. As with any activewear, lighter colors are slightly more transparent than darker ones, especially when stretched over time. If you prefer maximum coverage, navy, black, and dark grey styles offer the most opacity.

Still Have Questions?

If you have a question we haven't covered, contact us through the site. For shopping, browse the full Sin Devil collection: leggings, matching workout sets, and tops are all available at sindevil.com with free US shipping over $75.

About Sin Devil Sport Wear

Sin Devil Sport Wear is a women's activewear brand designed in South Florida and based in Boca Raton. Shop high waist leggings, tummy control leggings, compression leggings, and matching workout sets engineered for the Miami climate. Sizes XS-L for tall women, plus size, postpartum mothers, and women over 40. Perfect for hot yoga, pilates, barre class, CrossFit, weightlifting, spin class, and everyday wear from Wynwood to South Beach to Coral Gables. Free US shipping over $75.