TIGHTEN AND TONE YOUR UPPER ARMS. Shape & Slim® Tone Activ’Wear Sleeves are made of a unique wave knit that massages your skin as you wear them. Simply slip them on and your arms will feel firmer, more energized, and ready for your favorite tank top! Specialized fabric is infused with active ingredients to further slim, tone and smooth the skin. Ingredients last up to 20 washes. One size fits most. Polyamide/elastane. Washable. Made in Italy.