Download link: 
➡ Click here: How to cut a t shirt into a tank top
Make sure the cuts stop just before the tape, do not cut into or above it. I drew the back neckline just outside of the original hem, and had the back straps curve in a little.
That worked fine, but it started to come unraveled when I washed it…this method should hold up alot better.  This design is only one of the many possible ways to cut a t-shirt. Try it on and zip note of the width of the straps and the neckline. An inch is about the distance from your fingertip to your first knuckle. Cut the sides of the shirt. Amazon Unified Ad Marketplace This is an ad network. Leaving it in place will make tying elements more difficult and will look silly, too. After both sides are tied, all that remains is raising the neckline a little. HubPages Traffic Pixel This is used to collect data on traffic to articles and other pages on our site. The ruching created by tying the sides is anon forgiving and flattering at the same time, and you can bet no one else will have a shirt like yours. I just tied the string at the bottom, wrapped around and around and around and then knotted it again at the top. Continue  looping and ring tight until work your way up to the holes at the top.
Also, beware of the dogs. You may, however, want to use ribbon or shoelaces to add more to your shirt. Using white shoestrings or ribbon would be a great choice here.
DIY Fashion: Make a T-Shirt Into a Tank Top - Cut both the front and back of the shirt in strands about an inch thick. It is a fantastic way to cut down shirts that are too long or too wide, and even shows you how to raise that neck line a little.
I already shared from totally worn-out, unwanted t-shirts, but what about those shirts you bought a size too big because it was the only choice and you really, really liked the design? I know I'm very guilty of buying a shirt I like if it's on sale, even if it isn't quite the correct size. And how many over-sized freebie t-shirts do you have sitting in drawers because you just can't bear to get rid of a perfectly good shirt? In high school, my friends and I used to cut the sides of t-shirts in ribbons and re-tie them smaller, but if that seems a little young for your current tastes, trying turning your liked, but too large, t-shirt into a racer-back workout tank top. Doing this removes some of the extra, bulky fabric and too-long sleeves, but allows you to keep the design intact. Turning a t-shirt into a tank top only requires a pair of scissors sharp enough to cut cloth and a t-shirt. It takes about 15 minutes and does not even require needle and thread! To get started, make sure your t-shirt is clean and as wrinkle-free as possible. Wrinkles in the fabric make it more difficult to cut accurately and evenly, which can detract from the appearance of your new tank top. All of the steps are illustrated in the photographs below! This can be a table, a cutting board, a counter top, or even the floor, if you have no other large, flat space. Try to smooth it out and make it as flat and even as possible. Most t-shirts are cut lower in the front than in the back, but you may want to make the neck's front even deeper. However, if this is your first time creating a t-shirt tank top, I recommend only cutting off the stitched collar at this time. You can always go back after completing the tank top and make modifications, such as deepening the neck. Cut it so it forms a long strip, instead of a loop, pull on it to stretch it as much as possible. Retain the strip for use in step 5. Alternatively, you can toss this strip and use a piece of t-shirt yarn in a different color for some added fun. If you don't know how to make t-shirt yarn, learn. Instead, decide how wide you want the finished tank top straps to be and make a cut straight down the side of the shirt, as shown. After cutting until you are just above the bottom edge of the sleeve, then make a wide curve over to the t-shirts edge. If this sounds confusing, just look at the picture. If you start the curve immediately instead of going straight, your tank top will look really goofy! It is very easy to make the arm holes too big and create a tank top that is somewhat revealing. I recommend starting by cutting small, trying the shirt on, and cutting down, if necessary. Tie your t-shirt yarn or stretched hem strip to this spot, pulling in the slack to make a tight knot around the bunched up shirt. Once again, just see the picture to see how it's done. I recommend tying a square knot, but any type of knot will do. If you love sewing, you can can attach this piece with a few quick stitches, but it is not necessary. You can always try the shirt on to see where you would like the racer back to end. Once you have found your ending point, simply tie the yarn to the shirt, again, and cut away any excess. Try it on and see how you like the length and front neck and trim away until you reach your desired shirt silhouette. I have cut off many shirts and ruined several by cutting exactly where I wanted the shirt to end without taking this rolling in to consideration. I recommend wearing it as-is, and maybe even washing it, before cutting any length. A racer back tank top is perfect for exercising, the beach, or relaxing around the house. Interested in learning how? If you're looking for something without gaps or holes, I also have a tutorial on how to create a herringbone. No matter which method you choose, upcycling too big t-shirts into something cute and wearable is a fun way to spruce up your wardrobe for free. You can make shirts like this by rolling the shirt into a lengthways cylinder, banding it, and using a direct dye application. Instead of mixing up huge vats of color, you basically just apply the dye to the fabric. Do you see how there is more dye on the right side of the shirt? Look at the first picture of the whole t-shirt That's where the direct dye application was made. Of course, don't forget to pre-soak the shirt - wet textiles always tye dye better! Login This is necessary to sign in to the HubPages Service. Akismet This is used to detect comment spam. HubPages Google Analytics This is used to provide data on traffic to our website, all personally identifyable data is anonymized. HubPages Traffic Pixel This is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized. Amazon Web Services This is a cloud services platform that we used to host our service. Cloudflare This is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. Google Hosted Libraries Javascript software libraries such as jQuery are loaded at endpoints on the googleapis. Features Google Custom Search This is feature allows you to search the site. Google Maps Some articles have Google Maps embedded in them. Google Charts This is used to display charts and graphs on articles and the author center. Google AdSense Host API This service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. Google YouTube Some articles have YouTube videos embedded in them. Vimeo Some articles have Vimeo videos embedded in them. Paypal This is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. Facebook Login You can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. Maven This supports the Maven widget and search functionality. Marketing Google AdSense This is an ad network. Google DoubleClick Google provides ad serving technology and runs an ad network. Index Exchange This is an ad network. Sovrn This is an ad network. Facebook Ads This is an ad network. Amazon Unified Ad Marketplace This is an ad network. AppNexus This is an ad network. Openx This is an ad network. Rubicon Project This is an ad network. TripleLift This is an ad network. Say Media We partner with Say Media to deliver ad campaigns on our sites. Remarketing Pixels We may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites. Conversion Tracking Pixels We may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service. Statistics Author Google Analytics This is used to provide traffic data and reports to the authors of articles on the HubPages Service. Comscore ComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. Amazon Tracking Pixel Some articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products.